| Schedule III - Real Estate and Accumulated Depreciation (Details) - USD ($)$ in Thousands
 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | $ 99,539 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 570,610 |  |  |  | 
| Building and Land Improvements | 3,607,812 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 725,418 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 570,610 |  |  |  | 
| Building and Land Improvements | 4,333,230 |  |  |  | 
| Total | 4,903,840 | $ 4,986,537 | $ 4,959,709 | $ 4,686,802 | 
| Accumulated Depreciation | (1,400,162) | (1,273,448) | $ (1,234,908) | $ (1,124,253) | 
| Additional information |  |  |  |  | 
| Debt, net | 2,416,287 | 2,231,794 |  |  | 
| Net discounts and deferred financing costs | 28,700 |  |  |  | 
| Aggregate cost of assets for federal income tax purposes | $ 3,800,000 |  |  |  | 
| Buildings improvements | Minimum |  |  |  |  | 
| Additional information |  |  |  |  | 
| Estimated lives over which depreciation is recognized | 10 years |  |  |  | 
| Buildings improvements | Maximum |  |  |  |  | 
| Additional information |  |  |  |  | 
| Estimated lives over which depreciation is recognized | 40 years |  |  |  | 
| Revolving Credit Facility |  |  |  |  | 
| Additional information |  |  |  |  | 
| Debt, net | $ 75,000 | 211,000 |  |  | 
| Term Loan Facility |  |  |  |  | 
| Additional information |  |  |  |  | 
| Debt, net | 124,291 | $ 123,948 |  |  | 
| Unsecured Senior Notes |  |  |  |  | 
| Additional information |  |  |  |  | 
| Debt, net | 2,100,000 |  |  |  | 
| Unsecured notes payable |  |  |  |  | 
| Additional information |  |  |  |  | 
| Debt, net | 430 |  |  |  | 
| Fixed rate mortgage loans |  |  |  |  | 
| Additional information |  |  |  |  | 
| Net discounts and deferred financing costs | 331 |  |  |  | 
| 100 Light Street |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 6,720 |  |  |  | 
| Building and Land Improvements | 31,215 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 27,021 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 6,720 |  |  |  | 
| Building and Land Improvements | 58,236 |  |  |  | 
| Total | 64,956 |  |  |  | 
| Accumulated Depreciation | (36,309) |  |  |  | 
| 100 Secured Gateway |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 71,174 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 52 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 71,226 |  |  |  | 
| Total | 71,226 |  |  |  | 
| Accumulated Depreciation | (5,910) |  |  |  | 
| 1000 Redstone Gateway |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 8,461 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 20,533 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 217 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 20,750 |  |  |  | 
| Total | 20,750 |  |  |  | 
| Accumulated Depreciation | (5,566) |  |  |  | 
| 1100 Redstone Gateway |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 9,163 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 19,593 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 2,929 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 22,522 |  |  |  | 
| Total | 22,522 |  |  |  | 
| Accumulated Depreciation | (4,956) |  |  |  | 
| 114 National Business Parkway |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 364 |  |  |  | 
| Building and Land Improvements | 3,109 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 427 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 364 |  |  |  | 
| Building and Land Improvements | 3,536 |  |  |  | 
| Total | 3,900 |  |  |  | 
| Accumulated Depreciation | (1,883) |  |  |  | 
| 1200 Redstone Gateway |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 10,563 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 22,389 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 9,493 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 31,882 |  |  |  | 
| Total | 31,882 |  |  |  | 
| Accumulated Depreciation | (6,195) |  |  |  | 
| 1201 M Street SE |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 49,775 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 10,883 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 60,658 |  |  |  | 
| Total | 60,658 |  |  |  | 
| Accumulated Depreciation | (25,428) |  |  |  | 
| 1201 Winterson Road |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 2,130 |  |  |  | 
| Building and Land Improvements | 17,207 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 937 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 2,130 |  |  |  | 
| Building and Land Improvements | 18,144 |  |  |  | 
| Total | 20,274 |  |  |  | 
| Accumulated Depreciation | (6,857) |  |  |  | 
| 1220 12th Street, SE |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 42,464 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 11,714 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 54,178 |  |  |  | 
| Total | 54,178 |  |  |  | 
| Accumulated Depreciation | (23,306) |  |  |  | 
| 1243 Winterson Road |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 630 |  |  |  | 
| Building and Land Improvements | 0 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 630 |  |  |  | 
| Building and Land Improvements | 0 |  |  |  | 
| Total | 630 |  |  |  | 
| Accumulated Depreciation | 0 |  |  |  | 
| 131 National Business Parkway |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,906 |  |  |  | 
| Building and Land Improvements | 7,623 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 6,520 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,906 |  |  |  | 
| Building and Land Improvements | 14,143 |  |  |  | 
| Total | 16,049 |  |  |  | 
| Accumulated Depreciation | (9,286) |  |  |  | 
| 132 National Business Parkway |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 2,917 |  |  |  | 
| Building and Land Improvements | 12,259 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 4,995 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 2,917 |  |  |  | 
| Building and Land Improvements | 17,254 |  |  |  | 
| Total | 20,171 |  |  |  | 
| Accumulated Depreciation | (11,842) |  |  |  | 
| 133 National Business Parkway |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 2,517 |  |  |  | 
| Building and Land Improvements | 10,068 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 6,842 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 2,517 |  |  |  | 
| Building and Land Improvements | 16,910 |  |  |  | 
| Total | 19,427 |  |  |  | 
| Accumulated Depreciation | (11,967) |  |  |  | 
| 134 National Business Parkway |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 3,684 |  |  |  | 
| Building and Land Improvements | 7,517 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 5,973 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 3,684 |  |  |  | 
| Building and Land Improvements | 13,490 |  |  |  | 
| Total | 17,174 |  |  |  | 
| Accumulated Depreciation | (9,640) |  |  |  | 
| 1340 Ashton Road |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 905 |  |  |  | 
| Building and Land Improvements | 3,620 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 2,631 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 905 |  |  |  | 
| Building and Land Improvements | 6,251 |  |  |  | 
| Total | 7,156 |  |  |  | 
| Accumulated Depreciation | (3,861) |  |  |  | 
| 13450 Sunrise Valley Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,386 |  |  |  | 
| Building and Land Improvements | 5,576 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 5,076 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,386 |  |  |  | 
| Building and Land Improvements | 10,652 |  |  |  | 
| Total | 12,038 |  |  |  | 
| Accumulated Depreciation | (7,417) |  |  |  | 
| 13454 Sunrise Valley Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 2,847 |  |  |  | 
| Building and Land Improvements | 11,986 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 12,997 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 2,847 |  |  |  | 
| Building and Land Improvements | 24,983 |  |  |  | 
| Total | 27,830 |  |  |  | 
| Accumulated Depreciation | (14,469) |  |  |  | 
| 135 National Business Parkway |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 2,484 |  |  |  | 
| Building and Land Improvements | 9,750 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 7,296 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 2,484 |  |  |  | 
| Building and Land Improvements | 17,046 |  |  |  | 
| Total | 19,530 |  |  |  | 
| Accumulated Depreciation | (12,106) |  |  |  | 
| 1362 Mellon Road |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 950 |  |  |  | 
| Building and Land Improvements | 3,864 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 3,031 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 950 |  |  |  | 
| Building and Land Improvements | 6,895 |  |  |  | 
| Total | 7,845 |  |  |  | 
| Accumulated Depreciation | (1,898) |  |  |  | 
| 13857 McLearen Road |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 3,507 |  |  |  | 
| Building and Land Improvements | 30,177 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 5,911 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 3,507 |  |  |  | 
| Building and Land Improvements | 36,088 |  |  |  | 
| Total | 39,595 |  |  |  | 
| Accumulated Depreciation | (16,023) |  |  |  | 
| 140 National Business Parkway |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 3,407 |  |  |  | 
| Building and Land Improvements | 24,167 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 2,975 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 3,407 |  |  |  | 
| Building and Land Improvements | 27,142 |  |  |  | 
| Total | 30,549 |  |  |  | 
| Accumulated Depreciation | (13,110) |  |  |  | 
| 141 National Business Parkway |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 2,398 |  |  |  | 
| Building and Land Improvements | 9,538 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 4,844 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 2,398 |  |  |  | 
| Building and Land Improvements | 14,382 |  |  |  | 
| Total | 16,780 |  |  |  | 
| Accumulated Depreciation | (10,511) |  |  |  | 
| 14280 Park Meadow Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 3,731 |  |  |  | 
| Building and Land Improvements | 15,953 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 5,641 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 3,731 |  |  |  | 
| Building and Land Improvements | 21,594 |  |  |  | 
| Total | 25,325 |  |  |  | 
| Accumulated Depreciation | (12,342) |  |  |  | 
| 1460 Dorsey Road |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,577 |  |  |  | 
| Building and Land Improvements | 187 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,577 |  |  |  | 
| Building and Land Improvements | 187 |  |  |  | 
| Total | 1,764 |  |  |  | 
| Accumulated Depreciation | 0 |  |  |  | 
| 14840 Conference Center Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,572 |  |  |  | 
| Building and Land Improvements | 8,175 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 5,833 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,572 |  |  |  | 
| Building and Land Improvements | 14,008 |  |  |  | 
| Total | 15,580 |  |  |  | 
| Accumulated Depreciation | (8,945) |  |  |  | 
| 14850 Conference Center Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,615 |  |  |  | 
| Building and Land Improvements | 8,358 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 7,740 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,615 |  |  |  | 
| Building and Land Improvements | 16,098 |  |  |  | 
| Total | 17,713 |  |  |  | 
| Accumulated Depreciation | (8,803) |  |  |  | 
| 14900 Conference Center Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 3,436 |  |  |  | 
| Building and Land Improvements | 14,402 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 10,459 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 3,436 |  |  |  | 
| Building and Land Improvements | 24,861 |  |  |  | 
| Total | 28,297 |  |  |  | 
| Accumulated Depreciation | (15,682) |  |  |  | 
| 1501 South Clinton Street |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 13,137 |  |  |  | 
| Building and Land Improvements | 20,753 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 46,956 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 13,137 |  |  |  | 
| Building and Land Improvements | 67,709 |  |  |  | 
| Total | 80,846 |  |  |  | 
| Accumulated Depreciation | (38,074) |  |  |  | 
| 15049 Conference Center Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 4,415 |  |  |  | 
| Building and Land Improvements | 20,365 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 18,213 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 4,415 |  |  |  | 
| Building and Land Improvements | 38,578 |  |  |  | 
| Total | 42,993 |  |  |  | 
| Accumulated Depreciation | (24,412) |  |  |  | 
| 15059 Conference Center Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 5,753 |  |  |  | 
| Building and Land Improvements | 13,615 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 9,602 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 5,753 |  |  |  | 
| Building and Land Improvements | 23,217 |  |  |  | 
| Total | 28,970 |  |  |  | 
| Accumulated Depreciation | (12,086) |  |  |  | 
| 1550 West Nursery Road |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 14,071 |  |  |  | 
| Building and Land Improvements | 16,930 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 14,071 |  |  |  | 
| Building and Land Improvements | 16,930 |  |  |  | 
| Total | 31,001 |  |  |  | 
| Accumulated Depreciation | (7,415) |  |  |  | 
| 1560 West Nursery Road |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,441 |  |  |  | 
| Building and Land Improvements | 113 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,441 |  |  |  | 
| Building and Land Improvements | 113 |  |  |  | 
| Total | 1,554 |  |  |  | 
| Accumulated Depreciation | (27) |  |  |  | 
| 1610 West Nursery Road |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 259 |  |  |  | 
| Building and Land Improvements | 246 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 259 |  |  |  | 
| Building and Land Improvements | 246 |  |  |  | 
| Total | 505 |  |  |  | 
| Accumulated Depreciation | (42) |  |  |  | 
| 1616 West Nursery Road |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 393 |  |  |  | 
| Building and Land Improvements | 3,323 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 75 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 393 |  |  |  | 
| Building and Land Improvements | 3,398 |  |  |  | 
| Total | 3,791 |  |  |  | 
| Accumulated Depreciation | (539) |  |  |  | 
| 1622 West Nursery Road |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 393 |  |  |  | 
| Building and Land Improvements | 2,542 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 393 |  |  |  | 
| Building and Land Improvements | 2,542 |  |  |  | 
| Total | 2,935 |  |  |  | 
| Accumulated Depreciation | (436) |  |  |  | 
| 16442 Commerce Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 613 |  |  |  | 
| Building and Land Improvements | 2,582 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 1,142 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 613 |  |  |  | 
| Building and Land Improvements | 3,724 |  |  |  | 
| Total | 4,337 |  |  |  | 
| Accumulated Depreciation | (2,275) |  |  |  | 
| 16480 Commerce Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,856 |  |  |  | 
| Building and Land Improvements | 7,425 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 2,878 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,856 |  |  |  | 
| Building and Land Improvements | 10,303 |  |  |  | 
| Total | 12,159 |  |  |  | 
| Accumulated Depreciation | (5,623) |  |  |  | 
| 16501 Commerce Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 522 |  |  |  | 
| Building and Land Improvements | 2,090 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 1,251 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 522 |  |  |  | 
| Building and Land Improvements | 3,341 |  |  |  | 
| Total | 3,863 |  |  |  | 
| Accumulated Depreciation | (1,794) |  |  |  | 
| 16539 Commerce Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 688 |  |  |  | 
| Building and Land Improvements | 2,860 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 2,345 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 688 |  |  |  | 
| Building and Land Improvements | 5,205 |  |  |  | 
| Total | 5,893 |  |  |  | 
| Accumulated Depreciation | (3,316) |  |  |  | 
| 16541 Commerce Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 773 |  |  |  | 
| Building and Land Improvements | 3,094 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 2,715 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 773 |  |  |  | 
| Building and Land Improvements | 5,809 |  |  |  | 
| Total | 6,582 |  |  |  | 
| Accumulated Depreciation | (3,540) |  |  |  | 
| 16543 Commerce Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 436 |  |  |  | 
| Building and Land Improvements | 1,742 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 907 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 436 |  |  |  | 
| Building and Land Improvements | 2,649 |  |  |  | 
| Total | 3,085 |  |  |  | 
| Accumulated Depreciation | (1,543) |  |  |  | 
| 1751 Pinnacle Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 4,762 |  |  |  | 
| Building and Land Improvements | 26,046 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 33,008 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 4,762 |  |  |  | 
| Building and Land Improvements | 59,054 |  |  |  | 
| Total | 63,816 |  |  |  | 
| Accumulated Depreciation | (48,466) |  |  |  | 
| 1753 Pinnacle Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 3,729 |  |  |  | 
| Building and Land Improvements | 21,500 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 27,446 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 3,729 |  |  |  | 
| Building and Land Improvements | 48,946 |  |  |  | 
| Total | 52,675 |  |  |  | 
| Accumulated Depreciation | (33,423) |  |  |  | 
| 206 Research Boulevard |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 0 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 0 |  |  |  | 
| Total | 0 |  |  |  | 
| Accumulated Depreciation | 0 |  |  |  | 
| 209 Research Boulevard |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 134 |  |  |  | 
| Building and Land Improvements | 1,711 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 842 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 134 |  |  |  | 
| Building and Land Improvements | 2,553 |  |  |  | 
| Total | 2,687 |  |  |  | 
| Accumulated Depreciation | (874) |  |  |  | 
| 210 Research Boulevard |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 113 |  |  |  | 
| Building and Land Improvements | 1,402 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 539 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 113 |  |  |  | 
| Building and Land Improvements | 1,941 |  |  |  | 
| Total | 2,054 |  |  |  | 
| Accumulated Depreciation | (710) |  |  |  | 
| 2100 L Street |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 41,935 |  |  |  | 
| Building and Land Improvements | 71,067 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 41,935 |  |  |  | 
| Building and Land Improvements | 71,067 |  |  |  | 
| Total | 113,002 |  |  |  | 
| Accumulated Depreciation | (6,645) |  |  |  | 
| 2100 Rideout Road |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 7,336 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 3,256 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 10,592 |  |  |  | 
| Total | 10,592 |  |  |  | 
| Accumulated Depreciation | (3,248) |  |  |  | 
| 22289 Exploration Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,422 |  |  |  | 
| Building and Land Improvements | 5,719 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 2,379 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,422 |  |  |  | 
| Building and Land Improvements | 8,098 |  |  |  | 
| Total | 9,520 |  |  |  | 
| Accumulated Depreciation | (4,804) |  |  |  | 
| 22299 Exploration Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,278 |  |  |  | 
| Building and Land Improvements | 5,791 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 3,085 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,278 |  |  |  | 
| Building and Land Improvements | 8,876 |  |  |  | 
| Total | 10,154 |  |  |  | 
| Accumulated Depreciation | (5,765) |  |  |  | 
| 22300 Exploration Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,094 |  |  |  | 
| Building and Land Improvements | 5,038 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 3,060 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,094 |  |  |  | 
| Building and Land Improvements | 8,098 |  |  |  | 
| Total | 9,192 |  |  |  | 
| Accumulated Depreciation | (5,054) |  |  |  | 
| 22309 Exploration Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 2,160 |  |  |  | 
| Building and Land Improvements | 10,419 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 8,179 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 2,160 |  |  |  | 
| Building and Land Improvements | 18,598 |  |  |  | 
| Total | 20,758 |  |  |  | 
| Accumulated Depreciation | (10,400) |  |  |  | 
| 23535 Cottonwood Parkway |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 692 |  |  |  | 
| Building and Land Improvements | 3,051 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 648 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 692 |  |  |  | 
| Building and Land Improvements | 3,699 |  |  |  | 
| Total | 4,391 |  |  |  | 
| Accumulated Depreciation | (2,524) |  |  |  | 
| 250 W Pratt St |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 4,704 |  |  |  | 
| Building and Land Improvements | 21,487 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 21,784 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 4,704 |  |  |  | 
| Building and Land Improvements | 43,271 |  |  |  | 
| Total | 47,975 |  |  |  | 
| Accumulated Depreciation | (25,472) |  |  |  | 
| 2600 Park Tower Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 20,284 |  |  |  | 
| Building and Land Improvements | 34,443 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 8,431 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 20,284 |  |  |  | 
| Building and Land Improvements | 42,874 |  |  |  | 
| Total | 63,158 |  |  |  | 
| Accumulated Depreciation | (11,121) |  |  |  | 
| 2691 Technology Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 2,098 |  |  |  | 
| Building and Land Improvements | 17,334 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 9,191 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 2,098 |  |  |  | 
| Building and Land Improvements | 26,525 |  |  |  | 
| Total | 28,623 |  |  |  | 
| Accumulated Depreciation | (13,995) |  |  |  | 
| 2701 Technology Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,737 |  |  |  | 
| Building and Land Improvements | 15,266 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 7,366 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,737 |  |  |  | 
| Building and Land Improvements | 22,632 |  |  |  | 
| Total | 24,369 |  |  |  | 
| Accumulated Depreciation | (14,744) |  |  |  | 
| 2711 Technology Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 2,251 |  |  |  | 
| Building and Land Improvements | 21,611 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 4,509 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 2,251 |  |  |  | 
| Building and Land Improvements | 26,120 |  |  |  | 
| Total | 28,371 |  |  |  | 
| Accumulated Depreciation | (16,956) |  |  |  | 
| 2720 Technology Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 3,863 |  |  |  | 
| Building and Land Improvements | 29,272 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 3,227 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 3,863 |  |  |  | 
| Building and Land Improvements | 32,499 |  |  |  | 
| Total | 36,362 |  |  |  | 
| Accumulated Depreciation | (16,331) |  |  |  | 
| 2721 Technology Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 4,611 |  |  |  | 
| Building and Land Improvements | 14,597 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 3,836 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 4,611 |  |  |  | 
| Building and Land Improvements | 18,433 |  |  |  | 
| Total | 23,044 |  |  |  | 
| Accumulated Depreciation | (12,025) |  |  |  | 
| 2730 Hercules Road |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 8,737 |  |  |  | 
| Building and Land Improvements | 31,612 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 9,569 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 8,737 |  |  |  | 
| Building and Land Improvements | 41,181 |  |  |  | 
| Total | 49,918 |  |  |  | 
| Accumulated Depreciation | (26,409) |  |  |  | 
| 30 Light Street |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 2,501 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 625 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 3,126 |  |  |  | 
| Total | 3,126 |  |  |  | 
| Accumulated Depreciation | (3,084) |  |  |  | 
| 300 Secured Gateway |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 63,500 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 63,500 |  |  |  | 
| Total | 63,500 |  |  |  | 
| Accumulated Depreciation | (379) |  |  |  | 
| 300 Sentinel Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,517 |  |  |  | 
| Building and Land Improvements | 59,165 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 2,590 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,517 |  |  |  | 
| Building and Land Improvements | 61,755 |  |  |  | 
| Total | 63,272 |  |  |  | 
| Accumulated Depreciation | (22,195) |  |  |  | 
| 302 Sentinel Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 2,648 |  |  |  | 
| Building and Land Improvements | 29,687 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 6,540 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 2,648 |  |  |  | 
| Building and Land Improvements | 36,227 |  |  |  | 
| Total | 38,875 |  |  |  | 
| Accumulated Depreciation | (13,417) |  |  |  | 
| 304 Sentinel Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 3,411 |  |  |  | 
| Building and Land Improvements | 24,917 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 5,335 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 3,411 |  |  |  | 
| Building and Land Improvements | 30,252 |  |  |  | 
| Total | 33,663 |  |  |  | 
| Accumulated Depreciation | (14,610) |  |  |  | 
| 306 Sentinel Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 3,260 |  |  |  | 
| Building and Land Improvements | 22,592 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 3,755 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 3,260 |  |  |  | 
| Building and Land Improvements | 26,347 |  |  |  | 
| Total | 29,607 |  |  |  | 
| Accumulated Depreciation | (12,080) |  |  |  | 
| 308 Sentinel Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,422 |  |  |  | 
| Building and Land Improvements | 26,208 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 2,365 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,422 |  |  |  | 
| Building and Land Improvements | 28,573 |  |  |  | 
| Total | 29,995 |  |  |  | 
| Accumulated Depreciation | (9,641) |  |  |  | 
| 310 Sentinel Way |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 2,372 |  |  |  | 
| Building and Land Improvements | 50,677 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 716 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 2,372 |  |  |  | 
| Building and Land Improvements | 51,393 |  |  |  | 
| Total | 53,765 |  |  |  | 
| Accumulated Depreciation | (8,291) |  |  |  | 
| 310 The Bridge Street |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 261 |  |  |  | 
| Building and Land Improvements | 26,530 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 6,406 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 261 |  |  |  | 
| Building and Land Improvements | 32,936 |  |  |  | 
| Total | 33,197 |  |  |  | 
| Accumulated Depreciation | (14,449) |  |  |  | 
| 312 Sentinel Way |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 3,138 |  |  |  | 
| Building and Land Improvements | 27,797 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 3,138 |  |  |  | 
| Building and Land Improvements | 27,797 |  |  |  | 
| Total | 30,935 |  |  |  | 
| Accumulated Depreciation | (6,474) |  |  |  | 
| 314 Sentinel Way |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,254 |  |  |  | 
| Building and Land Improvements | 7,741 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,254 |  |  |  | 
| Building and Land Improvements | 7,741 |  |  |  | 
| Total | 8,995 |  |  |  | 
| Accumulated Depreciation | (1,947) |  |  |  | 
| 316 Sentinel Way |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 2,748 |  |  |  | 
| Building and Land Improvements | 38,156 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 298 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 2,748 |  |  |  | 
| Building and Land Improvements | 38,454 |  |  |  | 
| Total | 41,202 |  |  |  | 
| Accumulated Depreciation | (11,361) |  |  |  | 
| 318 Sentinel Way |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 2,185 |  |  |  | 
| Building and Land Improvements | 28,426 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 562 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 2,185 |  |  |  | 
| Building and Land Improvements | 28,988 |  |  |  | 
| Total | 31,173 |  |  |  | 
| Accumulated Depreciation | (13,016) |  |  |  | 
| 320 Sentinel Way |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 2,067 |  |  |  | 
| Building and Land Improvements | 21,623 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 148 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 2,067 |  |  |  | 
| Building and Land Improvements | 21,771 |  |  |  | 
| Total | 23,838 |  |  |  | 
| Accumulated Depreciation | (8,753) |  |  |  | 
| 322 Sentinel Way |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 2,605 |  |  |  | 
| Building and Land Improvements | 22,827 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 1,900 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 2,605 |  |  |  | 
| Building and Land Improvements | 24,727 |  |  |  | 
| Total | 27,332 |  |  |  | 
| Accumulated Depreciation | (10,851) |  |  |  | 
| 324 Sentinel Way |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,656 |  |  |  | 
| Building and Land Improvements | 23,018 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 61 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,656 |  |  |  | 
| Building and Land Improvements | 23,079 |  |  |  | 
| Total | 24,735 |  |  |  | 
| Accumulated Depreciation | (7,690) |  |  |  | 
| 4000 Market Street |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 5,914 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 9,198 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 1,955 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 11,153 |  |  |  | 
| Total | 11,153 |  |  |  | 
| Accumulated Depreciation | (1,231) |  |  |  | 
| 410 National Business Parkway |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,831 |  |  |  | 
| Building and Land Improvements | 23,257 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 2,259 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,831 |  |  |  | 
| Building and Land Improvements | 25,516 |  |  |  | 
| Total | 27,347 |  |  |  | 
| Accumulated Depreciation | (8,066) |  |  |  | 
| 4100 Market Street |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 5,148 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 8,046 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 7 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 8,053 |  |  |  | 
| Total | 8,053 |  |  |  | 
| Accumulated Depreciation | (913) |  |  |  | 
| 420 National Business Parkway |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 2,370 |  |  |  | 
| Building and Land Improvements | 31,397 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 3,199 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 2,370 |  |  |  | 
| Building and Land Improvements | 34,596 |  |  |  | 
| Total | 36,966 |  |  |  | 
| Accumulated Depreciation | (7,049) |  |  |  | 
| 430 National Business Parkway |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,852 |  |  |  | 
| Building and Land Improvements | 21,563 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 3,118 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,852 |  |  |  | 
| Building and Land Improvements | 24,681 |  |  |  | 
| Total | 26,533 |  |  |  | 
| Accumulated Depreciation | (7,560) |  |  |  | 
| 44408 Pecan Court |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 817 |  |  |  | 
| Building and Land Improvements | 1,583 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 1,861 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 817 |  |  |  | 
| Building and Land Improvements | 3,444 |  |  |  | 
| Total | 4,261 |  |  |  | 
| Accumulated Depreciation | (2,432) |  |  |  | 
| 44414 Pecan Court |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 405 |  |  |  | 
| Building and Land Improvements | 1,619 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 1,229 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 405 |  |  |  | 
| Building and Land Improvements | 2,848 |  |  |  | 
| Total | 3,253 |  |  |  | 
| Accumulated Depreciation | (2,015) |  |  |  | 
| 44417 Pecan Court |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 434 |  |  |  | 
| Building and Land Improvements | 3,822 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 295 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 434 |  |  |  | 
| Building and Land Improvements | 4,117 |  |  |  | 
| Total | 4,551 |  |  |  | 
| Accumulated Depreciation | (2,576) |  |  |  | 
| 44420 Pecan Court |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 344 |  |  |  | 
| Building and Land Improvements | 890 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 329 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 344 |  |  |  | 
| Building and Land Improvements | 1,219 |  |  |  | 
| Total | 1,563 |  |  |  | 
| Accumulated Depreciation | (729) |  |  |  | 
| 44425 Pecan Court |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,309 |  |  |  | 
| Building and Land Improvements | 3,506 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 2,694 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,309 |  |  |  | 
| Building and Land Improvements | 6,200 |  |  |  | 
| Total | 7,509 |  |  |  | 
| Accumulated Depreciation | (4,310) |  |  |  | 
| 45310 Abell House Lane |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 2,272 |  |  |  | 
| Building and Land Improvements | 13,808 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 1,812 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 2,272 |  |  |  | 
| Building and Land Improvements | 15,620 |  |  |  | 
| Total | 17,892 |  |  |  | 
| Accumulated Depreciation | (5,025) |  |  |  | 
| 4600 River Road |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 26,255 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 26,255 |  |  |  | 
| Total | 26,255 |  |  |  | 
| Accumulated Depreciation | (1,706) |  |  |  | 
| 46579 Expedition Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,406 |  |  |  | 
| Building and Land Improvements | 5,796 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 2,987 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,406 |  |  |  | 
| Building and Land Improvements | 8,783 |  |  |  | 
| Total | 10,189 |  |  |  | 
| Accumulated Depreciation | (5,214) |  |  |  | 
| 46591 Expedition Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,200 |  |  |  | 
| Building and Land Improvements | 7,199 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 4,727 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,200 |  |  |  | 
| Building and Land Improvements | 11,926 |  |  |  | 
| Total | 13,126 |  |  |  | 
| Accumulated Depreciation | (5,899) |  |  |  | 
| 4851 Stonecroft Boulevard |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,878 |  |  |  | 
| Building and Land Improvements | 11,558 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 483 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,878 |  |  |  | 
| Building and Land Improvements | 12,041 |  |  |  | 
| Total | 13,919 |  |  |  | 
| Accumulated Depreciation | (5,618) |  |  |  | 
| 5300 Redstone Gateway |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 17,350 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 17,350 |  |  |  | 
| Total | 17,350 |  |  |  | 
| Accumulated Depreciation | 0 |  |  |  | 
| 540 National Business Parkway |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 2,035 |  |  |  | 
| Building and Land Improvements | 35,545 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 41 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 2,035 |  |  |  | 
| Building and Land Improvements | 35,586 |  |  |  | 
| Total | 37,621 |  |  |  | 
| Accumulated Depreciation | (5,003) |  |  |  | 
| 550 National Business Parkway |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 2,678 |  |  |  | 
| Building and Land Improvements | 43,521 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 2,678 |  |  |  | 
| Building and Land Improvements | 43,521 |  |  |  | 
| Total | 46,199 |  |  |  | 
| Accumulated Depreciation | (98) |  |  |  | 
| 5520 Research Park Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 20,072 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 2,356 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 22,428 |  |  |  | 
| Total | 22,428 |  |  |  | 
| Accumulated Depreciation | (8,416) |  |  |  | 
| 5522 Research Park Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 4,550 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 883 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 5,433 |  |  |  | 
| Total | 5,433 |  |  |  | 
| Accumulated Depreciation | (2,249) |  |  |  | 
| 560 National Business Parkway |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 2,193 |  |  |  | 
| Building and Land Improvements | 55,079 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 2,193 |  |  |  | 
| Building and Land Improvements | 55,079 |  |  |  | 
| Total | 57,272 |  |  |  | 
| Accumulated Depreciation | (1,635) |  |  |  | 
| 5801 University Research Court |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 10,640 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 17,431 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 162 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 17,593 |  |  |  | 
| Total | 17,593 |  |  |  | 
| Accumulated Depreciation | (2,726) |  |  |  | 
| 5825 University Research Court |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 18,580 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 22,771 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 2,874 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 25,645 |  |  |  | 
| Total | 25,645 |  |  |  | 
| Accumulated Depreciation | (9,925) |  |  |  | 
| 5850 University Research Court |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 19,657 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 31,906 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 1,112 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 33,018 |  |  |  | 
| Total | 33,018 |  |  |  | 
| Accumulated Depreciation | (11,519) |  |  |  | 
| 6000 Redstone Gateway |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 8,542 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 17 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 8,559 |  |  |  | 
| Total | 8,559 |  |  |  | 
| Accumulated Depreciation | (633) |  |  |  | 
| 610 Guardian Way |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 7,636 |  |  |  | 
| Building and Land Improvements | 53,682 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 7,636 |  |  |  | 
| Building and Land Improvements | 53,682 |  |  |  | 
| Total | 61,318 |  |  |  | 
| Accumulated Depreciation | (2,915) |  |  |  | 
| 6200 Redstone Gateway |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 50,086 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 50,086 |  |  |  | 
| Total | 50,086 |  |  |  | 
| Accumulated Depreciation | (922) |  |  |  | 
| 6700 Alexander Bell Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,755 |  |  |  | 
| Building and Land Improvements | 7,019 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 10,647 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,755 |  |  |  | 
| Building and Land Improvements | 17,666 |  |  |  | 
| Total | 19,421 |  |  |  | 
| Accumulated Depreciation | (11,013) |  |  |  | 
| 6708 Alexander Bell Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 897 |  |  |  | 
| Building and Land Improvements | 12,693 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 1,618 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 897 |  |  |  | 
| Building and Land Improvements | 14,311 |  |  |  | 
| Total | 15,208 |  |  |  | 
| Accumulated Depreciation | (5,520) |  |  |  | 
| 6711 Columbia Gateway Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 2,683 |  |  |  | 
| Building and Land Improvements | 23,239 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 3,243 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 2,683 |  |  |  | 
| Building and Land Improvements | 26,482 |  |  |  | 
| Total | 29,165 |  |  |  | 
| Accumulated Depreciation | (11,617) |  |  |  | 
| 6716 Alexander Bell Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,242 |  |  |  | 
| Building and Land Improvements | 4,969 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 7,391 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,242 |  |  |  | 
| Building and Land Improvements | 12,360 |  |  |  | 
| Total | 13,602 |  |  |  | 
| Accumulated Depreciation | (7,078) |  |  |  | 
| 6721 Columbia Gateway Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,753 |  |  |  | 
| Building and Land Improvements | 34,090 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 9,251 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,753 |  |  |  | 
| Building and Land Improvements | 43,341 |  |  |  | 
| Total | 45,094 |  |  |  | 
| Accumulated Depreciation | (15,125) |  |  |  | 
| 6724 Alexander Bell Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 449 |  |  |  | 
| Building and Land Improvements | 5,039 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 2,680 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 449 |  |  |  | 
| Building and Land Improvements | 7,719 |  |  |  | 
| Total | 8,168 |  |  |  | 
| Accumulated Depreciation | (4,620) |  |  |  | 
| 6731 Columbia Gateway Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 2,807 |  |  |  | 
| Building and Land Improvements | 19,098 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 6,920 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 2,807 |  |  |  | 
| Building and Land Improvements | 26,018 |  |  |  | 
| Total | 28,825 |  |  |  | 
| Accumulated Depreciation | (15,938) |  |  |  | 
| 6740 Alexander Bell Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,424 |  |  |  | 
| Building and Land Improvements | 4,209 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 9,685 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,424 |  |  |  | 
| Building and Land Improvements | 13,894 |  |  |  | 
| Total | 15,318 |  |  |  | 
| Accumulated Depreciation | (3,397) |  |  |  | 
| 6741 Columbia Gateway Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 675 |  |  |  | 
| Building and Land Improvements | 1,711 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 179 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 675 |  |  |  | 
| Building and Land Improvements | 1,890 |  |  |  | 
| Total | 2,565 |  |  |  | 
| Accumulated Depreciation | (807) |  |  |  | 
| 6750 Alexander Bell Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,263 |  |  |  | 
| Building and Land Improvements | 12,461 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 6,070 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,263 |  |  |  | 
| Building and Land Improvements | 18,531 |  |  |  | 
| Total | 19,794 |  |  |  | 
| Accumulated Depreciation | (12,322) |  |  |  | 
| 6760 Alexander Bell Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 890 |  |  |  | 
| Building and Land Improvements | 3,561 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 3,946 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 890 |  |  |  | 
| Building and Land Improvements | 7,507 |  |  |  | 
| Total | 8,397 |  |  |  | 
| Accumulated Depreciation | (5,576) |  |  |  | 
| 6940 Columbia Gateway Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 3,545 |  |  |  | 
| Building and Land Improvements | 9,916 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 12,806 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 3,545 |  |  |  | 
| Building and Land Improvements | 22,722 |  |  |  | 
| Total | 26,267 |  |  |  | 
| Accumulated Depreciation | (13,989) |  |  |  | 
| 6950 Columbia Gateway Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 3,596 |  |  |  | 
| Building and Land Improvements | 28,278 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 3,223 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 3,596 |  |  |  | 
| Building and Land Improvements | 31,501 |  |  |  | 
| Total | 35,097 |  |  |  | 
| Accumulated Depreciation | (14,171) |  |  |  | 
| 7000 Columbia Gateway Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 3,131 |  |  |  | 
| Building and Land Improvements | 12,103 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 10,509 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 3,131 |  |  |  | 
| Building and Land Improvements | 22,612 |  |  |  | 
| Total | 25,743 |  |  |  | 
| Accumulated Depreciation | (13,223) |  |  |  | 
| 7000 Redstone Gateway |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 8,900 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 8,900 |  |  |  | 
| Total | 8,900 |  |  |  | 
| Accumulated Depreciation | (147) |  |  |  | 
| 7005 Columbia Gateway Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 3,036 |  |  |  | 
| Building and Land Improvements | 747 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 3,036 |  |  |  | 
| Building and Land Improvements | 747 |  |  |  | 
| Total | 3,783 |  |  |  | 
| Accumulated Depreciation | 0 |  |  |  | 
| 7015 Albert Einstein Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 2,058 |  |  |  | 
| Building and Land Improvements | 6,093 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 3,560 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 2,058 |  |  |  | 
| Building and Land Improvements | 9,653 |  |  |  | 
| Total | 11,711 |  |  |  | 
| Accumulated Depreciation | (5,853) |  |  |  | 
| 7061 Columbia Gateway Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 729 |  |  |  | 
| Building and Land Improvements | 3,094 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 2,907 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 729 |  |  |  | 
| Building and Land Improvements | 6,001 |  |  |  | 
| Total | 6,730 |  |  |  | 
| Accumulated Depreciation | (3,964) |  |  |  | 
| 7063 Columbia Gateway Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 902 |  |  |  | 
| Building and Land Improvements | 3,684 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 3,707 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 902 |  |  |  | 
| Building and Land Improvements | 7,391 |  |  |  | 
| Total | 8,293 |  |  |  | 
| Accumulated Depreciation | (5,139) |  |  |  | 
| 7065 Columbia Gateway Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 919 |  |  |  | 
| Building and Land Improvements | 3,763 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 3,302 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 919 |  |  |  | 
| Building and Land Improvements | 7,065 |  |  |  | 
| Total | 7,984 |  |  |  | 
| Accumulated Depreciation | (4,991) |  |  |  | 
| 7067 Columbia Gateway Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,829 |  |  |  | 
| Building and Land Improvements | 11,823 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 9,177 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,829 |  |  |  | 
| Building and Land Improvements | 21,000 |  |  |  | 
| Total | 22,829 |  |  |  | 
| Accumulated Depreciation | (11,144) |  |  |  | 
| 7100 Redstone Gateway |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 12,989 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 12,989 |  |  |  | 
| Total | 12,989 |  |  |  | 
| Accumulated Depreciation | (839) |  |  |  | 
| 7125 Columbia Gateway Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 20,487 |  |  |  | 
| Building and Land Improvements | 49,926 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 29,466 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 20,487 |  |  |  | 
| Building and Land Improvements | 79,392 |  |  |  | 
| Total | 99,879 |  |  |  | 
| Accumulated Depreciation | (35,289) |  |  |  | 
| 7130 Columbia Gateway Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,350 |  |  |  | 
| Building and Land Improvements | 4,359 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 3,167 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,350 |  |  |  | 
| Building and Land Improvements | 7,526 |  |  |  | 
| Total | 8,876 |  |  |  | 
| Accumulated Depreciation | (4,626) |  |  |  | 
| 7134 Columbia Gateway Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 704 |  |  |  | 
| Building and Land Improvements | 4,700 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 817 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 704 |  |  |  | 
| Building and Land Improvements | 5,517 |  |  |  | 
| Total | 6,221 |  |  |  | 
| Accumulated Depreciation | (2,330) |  |  |  | 
| 7138 Columbia Gateway Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,104 |  |  |  | 
| Building and Land Improvements | 3,518 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 2,989 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,104 |  |  |  | 
| Building and Land Improvements | 6,507 |  |  |  | 
| Total | 7,611 |  |  |  | 
| Accumulated Depreciation | (4,725) |  |  |  | 
| 7142 Columbia Gateway Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,342 |  |  |  | 
| Building and Land Improvements | 7,148 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 4,265 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,342 |  |  |  | 
| Building and Land Improvements | 11,413 |  |  |  | 
| Total | 12,755 |  |  |  | 
| Accumulated Depreciation | (5,145) |  |  |  | 
| 7150 Columbia Gateway Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,032 |  |  |  | 
| Building and Land Improvements | 3,429 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 1,659 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,032 |  |  |  | 
| Building and Land Improvements | 5,088 |  |  |  | 
| Total | 6,120 |  |  |  | 
| Accumulated Depreciation | (2,392) |  |  |  | 
| 7150 Riverwood Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,821 |  |  |  | 
| Building and Land Improvements | 4,388 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 16,234 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,821 |  |  |  | 
| Building and Land Improvements | 20,622 |  |  |  | 
| Total | 22,443 |  |  |  | 
| Accumulated Depreciation | (3,599) |  |  |  | 
| 7160 Riverwood Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 2,732 |  |  |  | 
| Building and Land Improvements | 7,006 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 4,609 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 2,732 |  |  |  | 
| Building and Land Improvements | 11,615 |  |  |  | 
| Total | 14,347 |  |  |  | 
| Accumulated Depreciation | (6,322) |  |  |  | 
| 7170 Riverwood Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,283 |  |  |  | 
| Building and Land Improvements | 3,096 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 2,389 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,283 |  |  |  | 
| Building and Land Improvements | 5,485 |  |  |  | 
| Total | 6,768 |  |  |  | 
| Accumulated Depreciation | (3,181) |  |  |  | 
| 7175 Riverwood Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,788 |  |  |  | 
| Building and Land Improvements | 7,269 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,788 |  |  |  | 
| Building and Land Improvements | 7,269 |  |  |  | 
| Total | 9,057 |  |  |  | 
| Accumulated Depreciation | (1,842) |  |  |  | 
| 7200 Redstone Gateway |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 8,348 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 185 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 8,533 |  |  |  | 
| Total | 8,533 |  |  |  | 
| Accumulated Depreciation | (2,048) |  |  |  | 
| 7200 Riverwood Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 4,089 |  |  |  | 
| Building and Land Improvements | 22,630 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 5,332 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 4,089 |  |  |  | 
| Building and Land Improvements | 27,962 |  |  |  | 
| Total | 32,051 |  |  |  | 
| Accumulated Depreciation | (15,053) |  |  |  | 
| 7205 Riverwood Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,367 |  |  |  | 
| Building and Land Improvements | 21,419 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,367 |  |  |  | 
| Building and Land Improvements | 21,419 |  |  |  | 
| Total | 22,786 |  |  |  | 
| Accumulated Depreciation | (5,593) |  |  |  | 
| 7272 Park Circle Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,479 |  |  |  | 
| Building and Land Improvements | 6,300 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 4,618 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,479 |  |  |  | 
| Building and Land Improvements | 10,918 |  |  |  | 
| Total | 12,397 |  |  |  | 
| Accumulated Depreciation | (6,956) |  |  |  | 
| 7318 Parkway Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 972 |  |  |  | 
| Building and Land Improvements | 3,888 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 2,297 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 972 |  |  |  | 
| Building and Land Improvements | 6,185 |  |  |  | 
| Total | 7,157 |  |  |  | 
| Accumulated Depreciation | (3,590) |  |  |  | 
| 7400 Redstone Gateway |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 9,223 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 75 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 9,298 |  |  |  | 
| Total | 9,298 |  |  |  | 
| Accumulated Depreciation | (1,993) |  |  |  | 
| 7467 Ridge Road |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,565 |  |  |  | 
| Building and Land Improvements | 3,116 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 7,657 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,565 |  |  |  | 
| Building and Land Improvements | 10,773 |  |  |  | 
| Total | 12,338 |  |  |  | 
| Accumulated Depreciation | (5,750) |  |  |  | 
| 7500 Advanced Gateway |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 18,665 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 18,665 |  |  |  | 
| Total | 18,665 |  |  |  | 
| Accumulated Depreciation | (1,667) |  |  |  | 
| 7600 Advanced Gateway |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 13,752 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 13,752 |  |  |  | 
| Total | 13,752 |  |  |  | 
| Accumulated Depreciation | (1,170) |  |  |  | 
| 7740 Milestone Parkway |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 3,825 |  |  |  | 
| Building and Land Improvements | 34,176 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 1,855 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 3,825 |  |  |  | 
| Building and Land Improvements | 36,031 |  |  |  | 
| Total | 39,856 |  |  |  | 
| Accumulated Depreciation | (12,142) |  |  |  | 
| 7770 Backlick Road |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 6,387 |  |  |  | 
| Building and Land Improvements | 78,892 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 1,747 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 6,387 |  |  |  | 
| Building and Land Improvements | 80,639 |  |  |  | 
| Total | 87,026 |  |  |  | 
| Accumulated Depreciation | (21,899) |  |  |  | 
| 7880 Milestone Parkway |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 4,857 |  |  |  | 
| Building and Land Improvements | 27,173 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 1,619 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 4,857 |  |  |  | 
| Building and Land Improvements | 28,792 |  |  |  | 
| Total | 33,649 |  |  |  | 
| Accumulated Depreciation | (6,037) |  |  |  | 
| 8000 Rideout Road |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 28,155 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 49 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 28,204 |  |  |  | 
| Total | 28,204 |  |  |  | 
| Accumulated Depreciation | (1,240) |  |  |  | 
| 8100 Rideout Road |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 29,681 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 29,681 |  |  |  | 
| Total | 29,681 |  |  |  | 
| Accumulated Depreciation | 0 |  |  |  | 
| 8200 Rideout Road |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 45,653 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 45,653 |  |  |  | 
| Total | 45,653 |  |  |  | 
| Accumulated Depreciation | (1,556) |  |  |  | 
| 8300 Rideout Road |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 52,678 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 52,678 |  |  |  | 
| Total | 52,678 |  |  |  | 
| Accumulated Depreciation | (1,803) |  |  |  | 
| 8600 Advanced Gateway |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 27,312 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 24 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 27,336 |  |  |  | 
| Total | 27,336 |  |  |  | 
| Accumulated Depreciation | (2,079) |  |  |  | 
| 8621 Robert Fulton Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 2,317 |  |  |  | 
| Building and Land Improvements | 12,642 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 8,084 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 2,317 |  |  |  | 
| Building and Land Improvements | 20,726 |  |  |  | 
| Total | 23,043 |  |  |  | 
| Accumulated Depreciation | (10,265) |  |  |  | 
| 8661 Robert Fulton Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,510 |  |  |  | 
| Building and Land Improvements | 3,764 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 3,379 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,510 |  |  |  | 
| Building and Land Improvements | 7,143 |  |  |  | 
| Total | 8,653 |  |  |  | 
| Accumulated Depreciation | (4,437) |  |  |  | 
| 8671 Robert Fulton Drive |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,718 |  |  |  | 
| Building and Land Improvements | 4,280 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 4,848 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,718 |  |  |  | 
| Building and Land Improvements | 9,128 |  |  |  | 
| Total | 10,846 |  |  |  | 
| Accumulated Depreciation | (5,796) |  |  |  | 
| 870 Elkridge Landing Road |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 2,003 |  |  |  | 
| Building and Land Improvements | 9,442 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 10,464 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 2,003 |  |  |  | 
| Building and Land Improvements | 19,906 |  |  |  | 
| Total | 21,909 |  |  |  | 
| Accumulated Depreciation | (14,016) |  |  |  | 
| 8800 Redstone Gateway |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 11,413 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 18,470 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 18,470 |  |  |  | 
| Total | 18,470 |  |  |  | 
| Accumulated Depreciation | (1,900) |  |  |  | 
| 891 Elkridge Landing Road |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,165 |  |  |  | 
| Building and Land Improvements | 4,772 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 4,192 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,165 |  |  |  | 
| Building and Land Improvements | 8,964 |  |  |  | 
| Total | 10,129 |  |  |  | 
| Accumulated Depreciation | (6,042) |  |  |  | 
| 901 Elkridge Landing Road |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,156 |  |  |  | 
| Building and Land Improvements | 4,437 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 7,429 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,156 |  |  |  | 
| Building and Land Improvements | 11,866 |  |  |  | 
| Total | 13,022 |  |  |  | 
| Accumulated Depreciation | (6,397) |  |  |  | 
| 911 Elkridge Landing Road |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,215 |  |  |  | 
| Building and Land Improvements | 4,861 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 3,383 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,215 |  |  |  | 
| Building and Land Improvements | 8,244 |  |  |  | 
| Total | 9,459 |  |  |  | 
| Accumulated Depreciation | (5,783) |  |  |  | 
| 938 Elkridge Landing Road |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 922 |  |  |  | 
| Building and Land Improvements | 4,748 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 1,538 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 922 |  |  |  | 
| Building and Land Improvements | 6,286 |  |  |  | 
| Total | 7,208 |  |  |  | 
| Accumulated Depreciation | (3,816) |  |  |  | 
| 939 Elkridge Landing Road |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 939 |  |  |  | 
| Building and Land Improvements | 3,756 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 6,229 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 939 |  |  |  | 
| Building and Land Improvements | 9,985 |  |  |  | 
| Total | 10,924 |  |  |  | 
| Accumulated Depreciation | (6,565) |  |  |  | 
| Arundel Preserve |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 13,352 |  |  |  | 
| Building and Land Improvements | 9,888 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 13,352 |  |  |  | 
| Building and Land Improvements | 9,888 |  |  |  | 
| Total | 23,240 |  |  |  | 
| Accumulated Depreciation | 0 |  |  |  | 
| Canton Crossing Land |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 6,009 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 57 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 6,066 |  |  |  | 
| Total | 6,066 |  |  |  | 
| Accumulated Depreciation | (57) |  |  |  | 
| Canton Crossing Util Distr Ctr |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 2,866 |  |  |  | 
| Building and Land Improvements | 7,271 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 1,976 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 2,866 |  |  |  | 
| Building and Land Improvements | 9,247 |  |  |  | 
| Total | 12,113 |  |  |  | 
| Accumulated Depreciation | (8,026) |  |  |  | 
| Columbia Gateway - Southridge |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 6,387 |  |  |  | 
| Building and Land Improvements | 3,725 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 6,387 |  |  |  | 
| Building and Land Improvements | 3,725 |  |  |  | 
| Total | 10,112 |  |  |  | 
| Accumulated Depreciation | 0 |  |  |  | 
| Dahlgren Technology Center |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 978 |  |  |  | 
| Building and Land Improvements | 178 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 978 |  |  |  | 
| Building and Land Improvements | 178 |  |  |  | 
| Total | 1,156 |  |  |  | 
| Accumulated Depreciation | 0 |  |  |  | 
| Expedition VII |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 705 |  |  |  | 
| Building and Land Improvements | 8,366 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 705 |  |  |  | 
| Building and Land Improvements | 8,366 |  |  |  | 
| Total | 9,071 |  |  |  | 
| Accumulated Depreciation | (319) |  |  |  | 
| M Square Research Park |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 3,352 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 3,352 |  |  |  | 
| Total | 3,352 |  |  |  | 
| Accumulated Depreciation | 0 |  |  |  | 
| MP 3 |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 9,038 |  |  |  | 
| Building and Land Improvements | 993 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 9,038 |  |  |  | 
| Building and Land Improvements | 993 |  |  |  | 
| Total | 10,031 |  |  |  | 
| Accumulated Depreciation | 0 |  |  |  | 
| National Business Park North |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 15,554 |  |  |  | 
| Building and Land Improvements | 28,744 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 15,554 |  |  |  | 
| Building and Land Improvements | 28,744 |  |  |  | 
| Total | 44,298 |  |  |  | 
| Accumulated Depreciation | 0 |  |  |  | 
| North Gate Business Park |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,755 |  |  |  | 
| Building and Land Improvements | 5 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,755 |  |  |  | 
| Building and Land Improvements | 5 |  |  |  | 
| Total | 1,760 |  |  |  | 
| Accumulated Depreciation | 0 |  |  |  | 
| NoVA Office A |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 2,096 |  |  |  | 
| Building and Land Improvements | 46,849 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 2,096 |  |  |  | 
| Building and Land Improvements | 46,849 |  |  |  | 
| Total | 48,945 |  |  |  | 
| Accumulated Depreciation | (10,436) |  |  |  | 
| NoVA Office B |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 739 |  |  |  | 
| Building and Land Improvements | 38,376 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 739 |  |  |  | 
| Building and Land Improvements | 38,376 |  |  |  | 
| Total | 39,115 |  |  |  | 
| Accumulated Depreciation | (6,675) |  |  |  | 
| NoVA Office C |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 7,751 |  |  |  | 
| Building and Land Improvements | 84,815 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 7,751 |  |  |  | 
| Building and Land Improvements | 84,815 |  |  |  | 
| Total | 92,566 |  |  |  | 
| Accumulated Depreciation | (4,503) |  |  |  | 
| NoVA Office D |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 6,587 |  |  |  | 
| Building and Land Improvements | 40,559 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 6,587 |  |  |  | 
| Building and Land Improvements | 40,559 |  |  |  | 
| Total | 47,146 |  |  |  | 
| Accumulated Depreciation | (6,499) |  |  |  | 
| Oak Grove A |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 12,866 |  |  |  | 
| Building and Land Improvements | 42,087 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 12,866 |  |  |  | 
| Building and Land Improvements | 42,087 |  |  |  | 
| Total | 54,953 |  |  |  | 
| Accumulated Depreciation | (3,279) |  |  |  | 
| Oak Grove B |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 12,866 |  |  |  | 
| Building and Land Improvements | 41,621 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 12,866 |  |  |  | 
| Building and Land Improvements | 41,621 |  |  |  | 
| Total | 54,487 |  |  |  | 
| Accumulated Depreciation | (3,908) |  |  |  | 
| Oak Grove C |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 11,741 |  |  |  | 
| Building and Land Improvements | 78,829 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 11,741 |  |  |  | 
| Building and Land Improvements | 78,829 |  |  |  | 
| Total | 90,570 |  |  |  | 
| Accumulated Depreciation | (3,323) |  |  |  | 
| Oak Grove D |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 11,741 |  |  |  | 
| Building and Land Improvements | 77,097 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 11,741 |  |  |  | 
| Building and Land Improvements | 77,097 |  |  |  | 
| Total | 88,838 |  |  |  | 
| Accumulated Depreciation | (2,096) |  |  |  | 
| Old Annapolis Road |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,637 |  |  |  | 
| Building and Land Improvements | 5,500 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 6,985 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,637 |  |  |  | 
| Building and Land Improvements | 12,485 |  |  |  | 
| Total | 14,122 |  |  |  | 
| Accumulated Depreciation | (6,432) |  |  |  | 
| Patriot Ridge |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 18,517 |  |  |  | 
| Building and Land Improvements | 14,616 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 18,517 |  |  |  | 
| Building and Land Improvements | 14,616 |  |  |  | 
| Total | 33,133 |  |  |  | 
| Accumulated Depreciation | 0 |  |  |  | 
| Project EL |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 7,190 |  |  |  | 
| Building and Land Improvements | 46,912 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 7,190 |  |  |  | 
| Building and Land Improvements | 46,912 |  |  |  | 
| Total | 54,102 |  |  |  | 
| Accumulated Depreciation | (2,878) |  |  |  | 
| Project EX |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 13,010 |  |  |  | 
| Building and Land Improvements | 19,107 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 13,010 |  |  |  | 
| Building and Land Improvements | 19,107 |  |  |  | 
| Total | 32,117 |  |  |  | 
| Accumulated Depreciation | (2,225) |  |  |  | 
| PS A |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 4,078 |  |  |  | 
| Building and Land Improvements | 54,122 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 4,078 |  |  |  | 
| Building and Land Improvements | 54,122 |  |  |  | 
| Total | 58,200 |  |  |  | 
| Accumulated Depreciation | (512) |  |  |  | 
| PS B |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 3,468 |  |  |  | 
| Building and Land Improvements | 45,377 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 3,468 |  |  |  | 
| Building and Land Improvements | 45,377 |  |  |  | 
| Total | 48,845 |  |  |  | 
| Accumulated Depreciation | (82) |  |  |  | 
| Redstone Gateway |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 31,193 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 31,193 |  |  |  | 
| Total | 31,193 |  |  |  | 
| Accumulated Depreciation | 0 |  |  |  | 
| Sentry Gateway - T |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 14,020 |  |  |  | 
| Building and Land Improvements | 38,804 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 13 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 14,020 |  |  |  | 
| Building and Land Improvements | 38,817 |  |  |  | 
| Total | 52,837 |  |  |  | 
| Accumulated Depreciation | (16,384) |  |  |  | 
| Sentry Gateway - V |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 1,066 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 1,066 |  |  |  | 
| Total | 1,066 |  |  |  | 
| Accumulated Depreciation | (401) |  |  |  | 
| Sentry Gateway - W |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 1,884 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 71 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 1,955 |  |  |  | 
| Total | 1,955 |  |  |  | 
| Accumulated Depreciation | (703) |  |  |  | 
| Sentry Gateway - X |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,964 |  |  |  | 
| Building and Land Improvements | 21,178 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 53 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,964 |  |  |  | 
| Building and Land Improvements | 21,231 |  |  |  | 
| Total | 23,195 |  |  |  | 
| Accumulated Depreciation | (6,978) |  |  |  | 
| Sentry Gateway - Y |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,964 |  |  |  | 
| Building and Land Improvements | 21,298 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 8 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,964 |  |  |  | 
| Building and Land Improvements | 21,306 |  |  |  | 
| Total | 23,270 |  |  |  | 
| Accumulated Depreciation | (7,007) |  |  |  | 
| Sentry Gateway - Z |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 1,964 |  |  |  | 
| Building and Land Improvements | 30,573 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 1,964 |  |  |  | 
| Building and Land Improvements | 30,573 |  |  |  | 
| Total | 32,537 |  |  |  | 
| Accumulated Depreciation | (6,733) |  |  |  | 
| Southpoint Phase 2 Bldg A |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 4,404 |  |  |  | 
| Building and Land Improvements | 16,356 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 4,404 |  |  |  | 
| Building and Land Improvements | 16,356 |  |  |  | 
| Total | 20,760 |  |  |  | 
| Accumulated Depreciation | 0 |  |  |  | 
| Southpoint Phase 2 Bldg B |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 3,752 |  |  |  | 
| Building and Land Improvements | 1,398 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 3,752 |  |  |  | 
| Building and Land Improvements | 1,398 |  |  |  | 
| Total | 5,150 |  |  |  | 
| Accumulated Depreciation | 0 |  |  |  | 
| Westfields - Park Center |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 8,667 |  |  |  | 
| Building and Land Improvements | 3,515 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 0 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 8,667 |  |  |  | 
| Building and Land Improvements | 3,515 |  |  |  | 
| Total | 12,182 |  |  |  | 
| Accumulated Depreciation | 0 |  |  |  | 
| Other Developments, including intercompany eliminations |  |  |  |  | 
| Real Estate and Accumulated Depreciation |  |  |  |  | 
| Encumbrances | 0 |  |  |  | 
| Initial Cost |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 1,140 |  |  |  | 
| Costs Capitalized Subsequent to Acquisition | 258 |  |  |  | 
| Gross Amounts Carried At Close of Period |  |  |  |  | 
| Land | 0 |  |  |  | 
| Building and Land Improvements | 1,398 |  |  |  | 
| Total | 1,398 |  |  |  | 
| Accumulated Depreciation | $ (167) |  |  |  |