BuildingCensus

Washington, DC office buildings — the public record

Every office-class parcel in Washington, DC — who owns it and what the assessor values it at, what it last sold for and which businesses the public record places inside. Built exclusively from government data: Integrated Tax System public extract (owner names, mailing addresses, assessments), CAMA commercial and daily sales tables, Basic Business Licenses (suite-level premises; the universal catch-all licence was repealed Oct 2025, thinning the roll thereafter), and DOEE energy benchmarking. No listing sites, no scraping — every page cites its sources.

Office buildings
1,761
1,761 office-class parcels
Office floor area
212.1M
sq ft on the assessment roll
Assessed value
$78.6B
current roll
Towers 10+ floors
0
per the roll
With a recorded sale
628
price and date on record
Business locations
5,289
active, matched to buildings

🔒 Create a free account to export CSV · every Washington office parcel: owner, use code, floors, area, assessed value

Derived from county business-tax suite numbers

Buildings with a floor-by-floor view

Business-tax receipts carry suite numbers, and in a tower the suite prefix is the floor. Where enough of them agree with the county roll, the building page shows which floors the public record places businesses on. It is an occupancy signal, not a vacancy report.

BuildingFloors with activityReceipts read
1629 K ST NW37

The skyline, by the county roll

Notable office buildings

BuildingSubmarketFloorsSq ftBuiltAssessedRecorded ownerTenants
1400 INDEPENDENCE AVE SWWashington—2.6M1931$1BUNITED STATES OF AMERICA6
1200 NEW JERSEY AVE SEWashington—1.9M2006$563.7MUNITED STATES OF AMERICA2
2201 C ST NWWashington—1.9M1960$141.6MUNITED STATES OF AMERICA5
441 G ST NWWashington—1.8M1951$468.8MUNITED STATES OF AMERICA1
451 7TH ST SWWashington—1.8M1970$379.2MUNITED STATES OF AMERICA1
200 CONSTITUTION AVE NWWashington—1.6M1974$478.8MUNITED STATES OF AMERICA3
25 INDEPENDENCE AVE SEWashington—1.5M1909$618.2MUNITED STATES OF AMERICA0
700 19TH ST NWWashington—1.4M1975$318MINTERNATIONAL MONETARY FUND1
1111 CONSTITUTION AVE NWWashington—1.3M1928$981.3MUNITED STATES OF AMERICA0
400 7TH ST SWWashington—1.3M1970$593.8MCC OWNER LLC1
1818 H ST NWWashington—1.3M1935$714.1MINTERNATIONAL BANK FOR RECONSTRUCTION & DEVELOPMENT4
1300 NEW YORK AVE NWWashington—1.2M1983$600.1MINTER-AMERICAN DEVELOPMENT BANK0
1000 INDEPENDENCE AVE SWWashington—1.2M1969$393.1MUNITED STATES OF AMERICA2
1800 E ST NWWashington—1.2M1936$157MUNITED STATES OF AMERICA4
1835 I ST NWWashington—1.2M1980$421.6MCARR CRHP PROPERTIES LLC13
350 14TH ST NWWashington—1.1M1931$1.2BUNITED STATES OF AMERICA1
1100 15TH ST NWWashington—1.1M2017$614.5M1100 15TH STREET LLC29
230 INDEPENDENCE AVE SWWashington—1.1M1973$491.7MUNITED STATES OF AMERICA2
201 2ND ST NEWashington—1.1M1970$358.8MUNITED STATES OF AMERICA0
800 INDEPENDENCE AVE SWWashington—1.1M1963$161.7MUNITED STATES OF AMERICA2
NWWashington—981.6K1937$356.4MUNITED STATES OF AMERICA4
1050 CONNECTICUT AVE NWWashington—967.1K1981$407.9M—48
400 NORTH CAPITOL ST NWWashington—961.3K1974$269.3MMEBA PENSION PLAN13
100 F ST NEWashington—929.6K2004$227.8MSECOND STREET HOLDINGS LLC0
677 WATER ST SWWashington—928K2022$242.1MDISTRICT OF COLUMBIA4
300 E ST SWWashington—899.1K1991$267MTWO INDEPENDENCE HANA OW LLC1
1200 PENNSYLVANIA AVE NWWashington—881.3K1932$360.9MUNITED STATES OF AMERICA0
475 LENFANT PLAZA SWWashington—880.2K1971$215.8MUNITED STATES OF AMERICA0
1801 K StreetWashington—818.5K1970$320.1MMAPS 1801 K STREET LLC7
1800 G ST NWWashington—813.8K1965$172.4MNORTHWESTERN DEVELOPMENT CO1
2 MASSACHUSETTS AVE NEWashington—809.6K1900$700.6MUNITED STATES OF AMERICA1
1201 MARYLAND AVE SWWashington—806.9K2006$145.1MPORTALS OWNER LLC4
1800 F ST NWWashington—803.4K1916$160.5MUNITED STATES OF AMERICA2
555 12TH ST NWWashington—795.1K1995$424.6M555 12TH REIT LLC8
1924 PENNSYLVANIA AVE NWWashington—776.5K2005$274MINTERNATIONAL MONETARY FUND1
1316 F ST NWWashington—768.4K1984$101.8MNATIONAL PLACE LAND COMPANY LLC1
655 New York AvenueWashington—758K2018$426.3M655 NEW YORK LLC10
700 2ND ST NEWashington—755.5K2009$197.8MKAISER FOUNDATION HEALTH PLAN OF THE MID-ATLANTIC STATES INC2
US CAPITOL NWWashington—744.2K—$2.1BUNITED STATES OF AMERICA0
701 CONSTITUTION AVE NWWashington—743.6K1935$310.4MUNITED STATES OF AMERICA2

Building names are editorial labels for well-known towers; all facts are the county's. Assessed values are the taxable-roll figures — not market prices.

Owner entities grouped by mailing address

Largest office landlords

OwnerMailing addressPropertiesFloor areaAssessedTenants
1201 F STREET LLC · 6 entitiesNEW YORK, NY62.8M sq ft$883M59
JEMAL'S BELMONT LP · 32 entitiesWASHINGTON, DC432.7M sq ft$920.9M156
HOME SAVINGS OF AMERICA · 16 entitiesSCOTTSDALE, AZ192.5M sq ft$1B69
12TH & L STREETS LTD PARTNERSHIP · 5 entitiesWASHINGTON, DC52.2M sq ft$467.5M82
INTERNATIONAL MONETARY FUNDWASHINGTON, DC22.1M sq ft$592M2
1140 19TH LLC · 8 entitiesNEW YORK, NY82M sq ft$984.8M42
1025 VERMONT VENTURE OWNER LLC · 10 entitiesWASHINGTON, DC102M sq ft$859.5M51
GEORGE WASHINGTON UNIVERSITY · 6 entitiesWASHINGTON, DC111.8M sq ft$942.1M33
1000 CONN AVE ASSOCIATES LLC · 6 entitiesBETHESDA, MD61.6M sq ft$751.8M53
INTERNATIONAL BANK FOR RECONSTRUCTION & DEVELOPMENT · 3 entitiesWASHINGTON, DC41.6M sq ft$560.2M7
WBS COLUMBUS LLC · 32 entitiesSOUTHLAKE, TX545.1M sq ft$1.2B45
GALLERY PLACE MRP-GFI VENTURE, LLC · 3 entitiesWASHINGTON, DC41.5M sq ft$372.9M28
600 SECOND STREET HOLDINGS LLC · 2 entitiesWASHINGTON, DC21.5M sq ft$360.2M4
1350 EYE STREET OWNER LLC · 3 entitiesWASHINGTON, DC31.5M sq ft$745.4M10
1001 CONNECTICUT LLC · 11 entitiesCHEVY CHASE, MD111.4M sq ft$212.6M88
FEDERAL CENTER OFFICE ASSOCIATES LLC · 7 entitiesBETHESDA, MD81.4M sq ft$236.1M22
PIEDMONT-CNL TOWERS ORLANDO OW · 18 entitiesATLANTA, GA195.2M sq ft$1.1B106
HGIT 1015 HALF STREET LLC · 3 entitiesWASHINGTON, DC31.4M sq ft$937.9M7
UNITED STATES OF AMERICAWASHINGTON, DC41.3M sq ft$981.3M0

Commercial property is usually held one building per entity, so the roll shows many owners where there is one sponsor. Grouping owner entities by the mailing address the county sends the tax bill to is what reveals the holding — evidence of common ownership, not proof of it, since a shared mailbox can also be a law firm, an accountant or a tax servicer. Each page says which case it looks like. Counted by building, not parcel.

Federal lease inventory — actual rent paid

The one rent figure that is public

Across 132 active federal office leases in Miami-Dade, the median rent is $49.56 per rentable square foot per year, with the middle half between $46 and $52. Asking rents are proprietary; the federal government publishes what it actually pays, lease by lease, and those leases appear on the building pages they belong to. One tenant is not a market — federal space is often agency-fitted and leased on government terms.

Every federal office lease in Florida, and when it expires →

Whole-building transfers over $1M

Recently sold office buildings

BuildingSubmarketSoldPrice$/sq ftSq ft
1627 K ST NWWashingtonSep 2026$6,798,071$9968.6K
1314 19TH ST NWWashingtonSep 2026$2,750,000$8343.3K
1330 CONNECTICUT AVE NWWashingtonSep 2026$92,375,000$362255.1K
727 15TH ST NWWashingtonSep 2026$9,000,000$19446.3K
400 NORTH CAPITOL ST NWWashingtonSep 2026$170,000,000$177961.3K
1775 PENNSYLVANIA AVE NWWashingtonSep 2026$37,500,000$121309.5K
600 14TH ST NWWashingtonAug 2026$126,000,000$468269.5K
601 E ST SEWashingtonAug 2026$1,000,000$4812.1K
900 19TH ST NWWashingtonAug 2026$30,165,000$189159.6K
1667 K ST NW # 900WashingtonAug 2026$26,250,000$102257.5K
2300 M ST NWWashingtonAug 2026$51,400,000$425120.9K
660 NORTH CAPITOL ST NWWashingtonJul 2026$81,659,698$402203K
729 15TH ST NWWashingtonJul 2026$8,400,000$25133.5K
1140 CONNECTICUT AVE NWWashingtonJul 2026$21,000,000$85245.9K
1050 THOMAS JEFFERSON ST NWWashingtonJul 2026$16,762,542$58287K
1000 THOMAS JEFFERSON ST NWWashingtonJul 2026$11,237,458$54207.7K
1700 18TH ST NWWashingtonJul 2026$11,000,000$57319.2K
1090 VERMONT AVE NWWashingtonJul 2026$23,100,000$101229.3K
4000 CHESAPEAKE ST NWWashingtonJul 2026$3,300,000$7941.8K
715 G ST SEWashingtonJul 2026$1,700,000$2387.1K

Countywide

Office stock by city

CityOffice buildingsFloor areaAssessedActive tenants

Data provenance — public records only

Every fact on this page is drawn from the government records above — no listing sites, no scraped platforms, no third-party images. Facts from public records are uncopyrightable; each tenancy row carries its source and match confidence. Records can lag reality — a business-tax receipt or registration at an address is evidence of occupancy, not a lease confirmation.

Dataset updated . Washington, DC is one metro of the office-intelligence census; each additional one is a data binding to another jurisdiction's records, not a new build.