Annual report pursuant to Section 13 and 15(d)

Schedule III Real Estate and Accumulated Depreciation - By Property (Details)

v3.19.3.a.u2
Schedule III Real Estate and Accumulated Depreciation - By Property (Details)
ft² in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2019
USD ($)
ft²
unit
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
Initial Cost        
Land [1] $ 607,252      
Buildings and Improvements [1] 1,709,463      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition 842,746      
Gross Amounts at Which Carried        
Land 580,297      
Buildings and Improvements 2,579,166      
Total 3,159,463 [2] $ 2,973,816 $ 2,831,683 $ 2,725,635
Accumulated Depreciation $ 712,630 770,535 $ 690,417 $ 657,425
Net Rentable Square Feet (sq ft) | ft² [3] 9,726      
Units | unit 6,658      
Carrying value for federal income tax purposes $ 1,917,800      
Investment in development of property $ 124,193 87,231    
Building and improvements | Minimum        
Gross Amounts at Which Carried        
Useful life (in years) 3 years      
Building and improvements | Maximum        
Gross Amounts at Which Carried        
Useful life (in years) 50 years      
The Trove        
Gross Amounts at Which Carried        
Investment in development of property $ 110,400      
Riverside Apartments land parcel        
Gross Amounts at Which Carried        
Investment in development of property 25,600      
Various development projects        
Gross Amounts at Which Carried        
Investment in development of property 1,900      
Multifamily Properties        
Initial Cost        
Land [1] 269,521      
Buildings and Improvements [1] 897,579      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition 424,981      
Gross Amounts at Which Carried        
Land 243,207      
Buildings and Improvements 1,348,875      
Total 1,592,082      
Accumulated Depreciation $ 260,694      
Net Rentable Square Feet (sq ft) | ft² 5,804      
Units | unit 6,658      
Investment in development of property $ 123,071 83,945    
Multifamily Properties | 3801 Connecticut Avenue | Washington DC        
Initial Cost        
Land [1] 420      
Buildings and Improvements [1] 2,678      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition 19,357      
Gross Amounts at Which Carried        
Land 420      
Buildings and Improvements 22,035      
Total 22,455      
Accumulated Depreciation $ 13,543      
Net Rentable Square Feet (sq ft) | ft² 178      
Units | unit 307      
Depreciation Life [4] 30 years      
Multifamily Properties | Roosevelt Towers | Virginia        
Initial Cost        
Land [1] $ 336      
Buildings and Improvements [1] 1,996      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition 13,659      
Gross Amounts at Which Carried        
Land 336      
Buildings and Improvements 15,655      
Total 15,991      
Accumulated Depreciation $ 11,418      
Net Rentable Square Feet (sq ft) | ft² 170      
Units | unit 191      
Depreciation Life [4] 40 years      
Multifamily Properties | Park Adams | Virginia        
Initial Cost        
Land [1] $ 287      
Buildings and Improvements [1] 1,654      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition 13,636      
Gross Amounts at Which Carried        
Land 287      
Buildings and Improvements 15,290      
Total 15,577      
Accumulated Depreciation $ 11,178      
Net Rentable Square Feet (sq ft) | ft² 173      
Units | unit 200      
Depreciation Life [4] 35 years      
Multifamily Properties | The Ashby at McLean | Virginia        
Initial Cost        
Land [1] $ 4,356      
Buildings and Improvements [1] 17,102      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition 27,319      
Gross Amounts at Which Carried        
Land 4,356      
Buildings and Improvements 44,421      
Total 48,777      
Accumulated Depreciation $ 29,047      
Net Rentable Square Feet (sq ft) | ft² 274      
Units | unit 256      
Depreciation Life [4] 30 years      
Multifamily Properties | Bethesda Hill Apartments | Maryland        
Initial Cost        
Land [1] $ 3,900      
Buildings and Improvements [1] 13,412      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition 16,545      
Gross Amounts at Which Carried        
Land 3,900      
Buildings and Improvements 29,957      
Total 33,857      
Accumulated Depreciation $ 21,017      
Net Rentable Square Feet (sq ft) | ft² 225      
Units | unit 195      
Depreciation Life [4] 30 years      
Multifamily Properties | Bennett Park | Virginia        
Initial Cost        
Land [1] $ 2,861      
Buildings and Improvements [1] 917      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition 81,896      
Gross Amounts at Which Carried        
Land 4,774      
Buildings and Improvements 80,900      
Total 85,674      
Accumulated Depreciation $ 40,308      
Net Rentable Square Feet (sq ft) | ft² 215      
Units | unit 224      
Depreciation Life [4] 28 years      
Multifamily Properties | The Clayborne | Virginia        
Initial Cost        
Land [1] $ 269      
Buildings and Improvements [1] 0      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition 31,374      
Gross Amounts at Which Carried        
Land 699      
Buildings and Improvements 30,944      
Total 31,643      
Accumulated Depreciation $ 16,971      
Net Rentable Square Feet (sq ft) | ft² 60      
Units | unit 74      
Depreciation Life [4] 26 years      
Multifamily Properties | The Kenmore | Washington DC        
Initial Cost        
Land [1] $ 28,222      
Buildings and Improvements [1] 33,955      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition 18,109      
Gross Amounts at Which Carried        
Land 28,222      
Buildings and Improvements 52,064      
Total 80,286      
Accumulated Depreciation $ 17,415      
Net Rentable Square Feet (sq ft) | ft² 268      
Units | unit 374      
Depreciation Life [4] 30 years      
Multifamily Properties | The Maxwell | Virginia        
Initial Cost        
Land [1] $ 12,787      
Buildings and Improvements [1] 0      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition 38,145      
Gross Amounts at Which Carried        
Land 12,848      
Buildings and Improvements 38,084      
Total 50,932      
Accumulated Depreciation $ 11,018      
Net Rentable Square Feet (sq ft) | ft² 116      
Units | unit 163      
Depreciation Life [4] 30 years      
Multifamily Properties | The Paramount | Virginia        
Initial Cost        
Land [1] $ 8,568      
Buildings and Improvements [1] 38,716      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition 3,101      
Gross Amounts at Which Carried        
Land 8,568      
Buildings and Improvements 41,817      
Total 50,385      
Accumulated Depreciation $ 11,261      
Net Rentable Square Feet (sq ft) | ft² 141      
Units | unit 135      
Depreciation Life [4] 30 years      
Multifamily Properties | Yale West | Washington DC        
Initial Cost        
Land [1],[5] $ 14,684      
Buildings and Improvements [1],[5] 62,069      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition [5] 1,688      
Gross Amounts at Which Carried        
Land [5] 14,684      
Buildings and Improvements [5] 63,757      
Total [5] 78,441      
Accumulated Depreciation [5] $ 13,442      
Net Rentable Square Feet (sq ft) | ft² 173      
Units | unit 216      
Depreciation Life [4] 30 years      
Amount of encumbrances $ 45,700      
Multifamily Properties | The Wellington | Virginia        
Initial Cost        
Land [1] 30,548      
Buildings and Improvements [1] 116,563      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition 16,178      
Gross Amounts at Which Carried        
Land 30,548      
Buildings and Improvements 132,741      
Total 163,289      
Accumulated Depreciation $ 21,947      
Net Rentable Square Feet (sq ft) | ft² 600      
Units | unit 711      
Depreciation Life [4] 30 years      
Multifamily Properties | The Trove | Virginia        
Initial Cost        
Land [1],[3] $ 15,000      
Buildings and Improvements [1],[3] 0      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition [3] 93,941      
Gross Amounts at Which Carried        
Land [3] 2,250      
Buildings and Improvements [3] 106,692      
Total [6] 108,942      
Accumulated Depreciation 146      
Investment in development of property 96,700      
Multifamily Properties | Riverside Apartments | Virginia        
Initial Cost        
Land [1] 38,924      
Buildings and Improvements [1] 184,854      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition 35,517      
Gross Amounts at Which Carried        
Land 38,924      
Buildings and Improvements 220,371      
Total 259,295      
Accumulated Depreciation $ 30,363      
Net Rentable Square Feet (sq ft) | ft² 1,001      
Units | unit 1,222      
Depreciation Life [4] 30 years      
Multifamily Properties | Riverside Apartments land parcel | Virginia        
Initial Cost        
Land [1],[3] $ 15,968      
Buildings and Improvements [1],[3] 0      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition [3] 9,674      
Gross Amounts at Which Carried        
Land [3] 0      
Buildings and Improvements [3] 25,642      
Total [3] 25,642      
Accumulated Depreciation [3] 0      
Investment in development of property 25,600      
Multifamily Properties | Assembly Alexandria | Virginia        
Initial Cost        
Land [1],[3] 23,942      
Buildings and Improvements [1],[3] 93,672      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition [3] 1,931      
Gross Amounts at Which Carried        
Land [3] 23,942      
Buildings and Improvements [3] 95,603      
Total [3] 119,545      
Accumulated Depreciation [3] $ 2,595      
Net Rentable Square Feet (sq ft) | ft² 437      
Units | unit 532      
Depreciation Life [4] 30 years      
Multifamily Properties | Assembly Manassas | Virginia        
Initial Cost        
Land [1],[3] $ 13,586      
Buildings and Improvements [1],[3] 68,802      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition [3] 617      
Gross Amounts at Which Carried        
Land [3] 13,586      
Buildings and Improvements [3] 69,419      
Total [3] 83,005      
Accumulated Depreciation [3] $ 2,015      
Net Rentable Square Feet (sq ft) | ft² 390      
Units | unit 408      
Depreciation Life [4] 30 years      
Multifamily Properties | Assembly Dulles | Virginia        
Initial Cost        
Land [1],[3] $ 12,476      
Buildings and Improvements [1],[3] 66,852      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition [3] 535      
Gross Amounts at Which Carried        
Land [3] 12,476      
Buildings and Improvements [3] 67,387      
Total [3] 79,863      
Accumulated Depreciation [3] $ 1,913      
Net Rentable Square Feet (sq ft) | ft² 361      
Units | unit 328      
Depreciation Life [4] 30 years      
Multifamily Properties | Assembly Leesburg | Virginia        
Initial Cost        
Land [1],[3] $ 4,113      
Buildings and Improvements [1],[3] 21,286      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition [3] 102      
Gross Amounts at Which Carried        
Land [3] 4,113      
Buildings and Improvements [3] 21,388      
Total [3] 25,501      
Accumulated Depreciation [3] $ 691      
Net Rentable Square Feet (sq ft) | ft² 124      
Units | unit 134      
Depreciation Life [4] 30 years      
Multifamily Properties | Assembly Herndon | Virginia        
Initial Cost        
Land [1],[3] $ 11,225      
Buildings and Improvements [1],[3] 51,534      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition [3] 690      
Gross Amounts at Which Carried        
Land [3] 11,225      
Buildings and Improvements [3] 52,224      
Total [3] 63,449      
Accumulated Depreciation [3] $ 1,618      
Net Rentable Square Feet (sq ft) | ft² 221      
Units | unit 283      
Depreciation Life [4] 30 years      
Multifamily Properties | Assembly Germantown | Maryland        
Initial Cost        
Land [1],[3] $ 7,609      
Buildings and Improvements [1],[3] 34,431      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition [3] 179      
Gross Amounts at Which Carried        
Land [3] 7,609      
Buildings and Improvements [3] 34,610      
Total [3] 42,219      
Accumulated Depreciation [3] $ 891      
Net Rentable Square Feet (sq ft) | ft² 211      
Units | unit 218      
Depreciation Life [4] 30 years      
Multifamily Properties | Assembly Watkins Mill | Maryland        
Initial Cost        
Land [1],[3] $ 7,151      
Buildings and Improvements [1],[3] 30,851      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition [3] 210      
Gross Amounts at Which Carried        
Land [3] 7,151      
Buildings and Improvements [3] 31,061      
Total [3] 38,212      
Accumulated Depreciation [3] $ 756      
Net Rentable Square Feet (sq ft) | ft² 193      
Units | unit 210      
Depreciation Life [4] 30 years      
Multifamily Properties | Cascade at Landmark | Virginia        
Initial Cost        
Land [1],[3] $ 12,289      
Buildings and Improvements [1],[3] 56,235      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition [3] 578      
Gross Amounts at Which Carried        
Land [3] 12,289      
Buildings and Improvements [3] 56,813      
Total [3] 69,102      
Accumulated Depreciation [3] $ 1,141      
Net Rentable Square Feet (sq ft) | ft² 273      
Units | unit 277      
Depreciation Life [4] 30 years      
Office Buildings        
Initial Cost        
Land [1] $ 304,555      
Buildings and Improvements [1] 730,709      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition 370,984      
Gross Amounts at Which Carried        
Land 304,555      
Buildings and Improvements 1,101,693      
Total 1,406,248      
Accumulated Depreciation $ 397,699      
Net Rentable Square Feet (sq ft) | ft² 3,227      
Investment in development of property $ 478 $ 478    
Office Buildings | 1901 Pennsylvania Avenue | Washington DC        
Initial Cost        
Land [1] 892      
Buildings and Improvements [1] 3,481      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition 20,595      
Gross Amounts at Which Carried        
Land 892      
Buildings and Improvements 24,076      
Total 24,968      
Accumulated Depreciation $ 18,613      
Net Rentable Square Feet (sq ft) | ft² 101      
Depreciation Life [4] 28 years      
Office Buildings | 515 King Street | Virginia        
Initial Cost        
Land [1] $ 4,102      
Buildings and Improvements [1] 3,931      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition 9,264      
Gross Amounts at Which Carried        
Land 4,102      
Buildings and Improvements 13,195      
Total 17,297      
Accumulated Depreciation $ 7,112      
Net Rentable Square Feet (sq ft) | ft² 75      
Depreciation Life [4] 50 years      
Office Buildings | 1220 19th Street | Washington DC        
Initial Cost        
Land [1] $ 7,803      
Buildings and Improvements [1] 11,366      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition 16,634      
Gross Amounts at Which Carried        
Land 7,803      
Buildings and Improvements 28,000      
Total 35,803      
Accumulated Depreciation $ 18,859      
Net Rentable Square Feet (sq ft) | ft² 103      
Depreciation Life [4] 30 years      
Office Buildings | 1600 Wilson Boulevard | Virginia        
Initial Cost        
Land [1] $ 6,661      
Buildings and Improvements [1] 16,742      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition 31,274      
Gross Amounts at Which Carried        
Land 6,661      
Buildings and Improvements 48,016      
Total 54,677      
Accumulated Depreciation $ 29,563      
Net Rentable Square Feet (sq ft) | ft² 170      
Depreciation Life [4] 30 years      
Office Buildings | Silverline Center | Virginia        
Initial Cost        
Land [1] $ 12,049      
Buildings and Improvements [1] 71,825      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition 102,283      
Gross Amounts at Which Carried        
Land 12,049      
Buildings and Improvements 174,108      
Total 186,157      
Accumulated Depreciation $ 104,536      
Net Rentable Square Feet (sq ft) | ft² 549      
Depreciation Life [4] 30 years      
Office Buildings | Courthouse Square | Virginia        
Initial Cost        
Land [1] $ 0      
Buildings and Improvements [1] 17,096      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition 10,172      
Gross Amounts at Which Carried        
Land 0      
Buildings and Improvements 27,268      
Total 27,268      
Accumulated Depreciation $ 17,615      
Net Rentable Square Feet (sq ft) | ft² 120      
Depreciation Life [4] 30 years      
Office Buildings | Monument II | Virginia        
Initial Cost        
Land [1] $ 10,244      
Buildings and Improvements [1] 65,205      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition 12,332      
Gross Amounts at Which Carried        
Land 10,244      
Buildings and Improvements 77,537      
Total 87,781      
Accumulated Depreciation $ 35,474      
Net Rentable Square Feet (sq ft) | ft² 209      
Depreciation Life [4] 30 years      
Office Buildings | 2000 M Street | Washington DC        
Initial Cost        
Land [1] $ 0      
Buildings and Improvements [1] 61,101      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition 41,735      
Gross Amounts at Which Carried        
Land 0      
Buildings and Improvements 102,836      
Total 102,836      
Accumulated Depreciation $ 40,369      
Net Rentable Square Feet (sq ft) | ft² 232      
Depreciation Life [4] 30 years      
Office Buildings | 1140 Connecticut Avenue | Washington DC        
Initial Cost        
Land [1] $ 25,226      
Buildings and Improvements [1] 50,495      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition 18,799      
Gross Amounts at Which Carried        
Land 25,226      
Buildings and Improvements 69,294      
Total 94,520      
Accumulated Depreciation $ 24,486      
Net Rentable Square Feet (sq ft) | ft² 184      
Depreciation Life [4] 30 years      
Office Buildings | 1227 25th Street | Washington DC        
Initial Cost        
Land [1] $ 17,505      
Buildings and Improvements [1] 21,319      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition 11,454      
Gross Amounts at Which Carried        
Land 17,505      
Buildings and Improvements 32,773      
Total 50,278      
Accumulated Depreciation $ 11,315      
Net Rentable Square Feet (sq ft) | ft² 135      
Depreciation Life [4] 30 years      
Office Buildings | John Marshall II | Virginia        
Initial Cost        
Land [1] $ 13,490      
Buildings and Improvements [1] 53,024      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition 9,534      
Gross Amounts at Which Carried        
Land 13,490      
Buildings and Improvements 62,558      
Total 76,048      
Accumulated Depreciation $ 19,020      
Net Rentable Square Feet (sq ft) | ft² 223      
Depreciation Life [4] 30 years      
Office Buildings | Fairgate at Ballston | Virginia        
Initial Cost        
Land [1] $ 17,750      
Buildings and Improvements [1] 29,885      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition 7,203      
Gross Amounts at Which Carried        
Land 17,750      
Buildings and Improvements 37,088      
Total 54,838      
Accumulated Depreciation $ 12,571      
Net Rentable Square Feet (sq ft) | ft² 145      
Depreciation Life [4] 30 years      
Office Buildings | Army Navy Building | Washington DC        
Initial Cost        
Land [1] $ 30,796      
Buildings and Improvements [1] 39,315      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition 13,201      
Gross Amounts at Which Carried        
Land 30,796      
Buildings and Improvements 52,516      
Total 83,312      
Accumulated Depreciation $ 13,078      
Net Rentable Square Feet (sq ft) | ft² 108      
Depreciation Life [4] 30 years      
Office Buildings | 1775 Eye Street, NW | Washington DC        
Initial Cost        
Land [1] $ 48,086      
Buildings and Improvements [1] 51,074      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition 16,328      
Gross Amounts at Which Carried        
Land 48,086      
Buildings and Improvements 67,402      
Total 115,488      
Accumulated Depreciation $ 17,232      
Net Rentable Square Feet (sq ft) | ft² 189      
Depreciation Life [4] 30 years      
Office Buildings | Watergate 600 | Washington DC        
Initial Cost        
Land [1] $ 45,981      
Buildings and Improvements [1] 78,325      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition 39,225      
Gross Amounts at Which Carried        
Land 45,981      
Buildings and Improvements 117,550      
Total 163,531      
Accumulated Depreciation $ 13,419      
Net Rentable Square Feet (sq ft) | ft² 293      
Depreciation Life [4] 30 years      
Office Buildings | Arlington Tower | Virginia        
Initial Cost        
Land [1] $ 63,970      
Buildings and Improvements [1] 156,525      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition 10,951      
Gross Amounts at Which Carried        
Land 63,970      
Buildings and Improvements 167,476      
Total 231,446      
Accumulated Depreciation $ 14,437      
Net Rentable Square Feet (sq ft) | ft² 391      
Depreciation Life [4] 30 years      
Retail Centers        
Initial Cost        
Land [1] $ 33,176      
Buildings and Improvements [1] 81,175      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition 46,781      
Gross Amounts at Which Carried        
Land 32,535      
Buildings and Improvements 128,598      
Total 161,133      
Accumulated Depreciation $ 54,237      
Net Rentable Square Feet (sq ft) | ft² 695      
Retail Centers | Takoma Park | Maryland        
Initial Cost        
Land [1] $ 415      
Buildings and Improvements [1] 1,084      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition 289      
Gross Amounts at Which Carried        
Land 366      
Buildings and Improvements 1,423      
Total 1,789      
Accumulated Depreciation $ 1,205      
Net Rentable Square Feet (sq ft) | ft² 51      
Depreciation Life [4] 50 years      
Retail Centers | Westminster | Maryland        
Initial Cost        
Land [1] $ 519      
Buildings and Improvements [1] 1,775      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition 9,988      
Gross Amounts at Which Carried        
Land 519      
Buildings and Improvements 11,763      
Total 12,282      
Accumulated Depreciation $ 8,614      
Net Rentable Square Feet (sq ft) | ft² 150      
Depreciation Life [4] 37 years      
Retail Centers | Concord Centre | Virginia        
Initial Cost        
Land [1] $ 413      
Buildings and Improvements [1] 850      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition 7,415      
Gross Amounts at Which Carried        
Land 413      
Buildings and Improvements 8,265      
Total 8,678      
Accumulated Depreciation $ 4,036      
Net Rentable Square Feet (sq ft) | ft² 75      
Depreciation Life [4] 33 years      
Retail Centers | Chevy Chase Metro Plaza | Washington DC        
Initial Cost        
Land [1] $ 1,549      
Buildings and Improvements [1] 4,304      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition 8,377      
Gross Amounts at Which Carried        
Land 1,549      
Buildings and Improvements 12,681      
Total 14,230      
Accumulated Depreciation $ 8,287      
Net Rentable Square Feet (sq ft) | ft² 49      
Depreciation Life [4] 50 years      
Retail Centers | 800 S. Washington Street | Virginia        
Initial Cost        
Land [1] $ 2,904      
Buildings and Improvements [1] 5,489      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition 6,168      
Gross Amounts at Which Carried        
Land 2,904      
Buildings and Improvements 11,657      
Total 14,561      
Accumulated Depreciation $ 6,196      
Net Rentable Square Feet (sq ft) | ft² 46      
Depreciation Life [4] 30 years      
Retail Centers | Randolph Shopping Center | Maryland        
Initial Cost        
Land [1] $ 4,928      
Buildings and Improvements [1] 13,025      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition 1,200      
Gross Amounts at Which Carried        
Land 4,928      
Buildings and Improvements 14,225      
Total 19,153      
Accumulated Depreciation $ 6,846      
Net Rentable Square Feet (sq ft) | ft² 83      
Depreciation Life [4] 30 years      
Retail Centers | Montrose Shopping Center | Maryland        
Initial Cost        
Land [1] $ 11,612      
Buildings and Improvements [1] 22,410      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition 2,604      
Gross Amounts at Which Carried        
Land 11,020      
Buildings and Improvements 25,606      
Total 36,626      
Accumulated Depreciation $ 11,856      
Net Rentable Square Feet (sq ft) | ft² 149      
Depreciation Life [4] 30 years      
Retail Centers | Spring Valley Village | Washington DC        
Initial Cost        
Land [1] $ 10,836      
Buildings and Improvements [1] 32,238      
Net Improvements (Retirement) since Acquisition        
Net Improvements (Retirement) since Acquisition 10,740      
Gross Amounts at Which Carried        
Land 10,836      
Buildings and Improvements 42,978      
Total 53,814      
Accumulated Depreciation $ 7,197      
Net Rentable Square Feet (sq ft) | ft² 92      
Depreciation Life [4] 30 years      
[1]
The purchase cost of real estate investments has been divided between land and buildings and improvements on the basis of management’s determination of the fair values.
[2]
At December 31, 2019, total land, buildings and improvements are carried at $1,917.8 million for federal income tax purposes.

[3]
As of December 31, 2019, WashREIT had under development multifamily properties, The Trove and Riverside Apartments land parcel. The value not yet placed into service at December 31, 2019 was $96.7 million and $25.6 million, respectively.
[4]
The useful life shown is for the main structure. Buildings and improvements are depreciated over various useful lives ranging from 3 to 50 years.
[5]
At December 31, 2019, our properties were encumbered by non-recourse mortgage amounts of $45.7 million on Yale West. Mortgage amounts exclude premiums and debt loan costs.

[6] As of December 31, 2019, WashREIT had investments in various development, redevelopment and renovation projects, including The Ashby at McLean, Montrose Shopping Center, Silverline Center, Takoma Park and The Paramount. The total value of these projects, which has not yet been placed in service, is $1.9 million at December 31, 2019.