1201 PENNSYLVANIA AVE NW
Office (large) · Washington · 20004
At a glance
1201 PENNSYLVANIA AVE NW in Washington, DC is listed on the Washington, DC property roll as “Office (large)”, SSL 02910037. The roll records 642,329 sq ft of building area, a 1980 build year and an assessed value of $255,660,070. 7 active business locations at this address appear in public records.
The building's own benchmarking filing
Energy performance
From the building's own filing under its city's benchmarking ordinance. An ENERGY STAR score of 75 or above means the building outperforms three quarters of comparable buildings nationally. It is a self-reported figure, verified by the city only to the extent the ordinance requires.
Public record — 7 matched business locations
Tenants & business locations
| Company | Suite / floor | Since | Source | Match |
|---|---|---|---|---|
| N/A | — | Oct 2026 | DC business licence | folio match · high |
| WASHINGTON WINE & SPIRITS | — | Aug 2026 | DC business licence | folio match · high |
| D.C. ONE ASSOCIATES | 240 | Sep 2025 | DC business licence | folio match · high |
| Hudson Institute | — | Dec 2024 | DC business licence | folio match · high |
| FISCALNOTE, INC | — | Dec 2024 | DC business licence | folio match · high |
| West Front Strategies | 530 | Dec 2024 | DC business licence | folio match · high |
| AMERICAN SECURITY PROJECT | — | Jan 2023 | DC business licence | folio match · high |
Washington, DC assessment roll
Parcel record
| Field | Value |
|---|---|
| SSL | 02910037 |
| Site address | 1201 PENNSYLVANIA AVE NW |
| Land use (DOR) | 052 — Office (large) |
| Building area (actual) | 642,329 sq ft |
| Floors / units / buildings | — / — / — |
| Lot size | 50,903 sq ft |
| Year built | 1980 |
| Zoning (primary) | — |
| Land value | — |
| Building value | — |
| Total assessed value | $255,660,070 |
Recorded owner (assessment roll)
1201 LAND LP
DC ONE ASSOCIATES
Owner mailing address: 1201 PENNSYLVANIA AVE NW STE 510, WASHINGTON, DC, 20004
Location
- Address
- 1201 PENNSYLVANIA AVE NW
- City
- Washington
- ZIP
- 20004
Within ~650 m
Nearby office buildings
No other office parcels within ~650 m.
How does 1201 PENNSYLVANIA AVE NW compare with other Washington office buildings?
At 642,329 sq ft, 1201 PENNSYLVANIA AVE NW is about 5 times the size of the average office building on the Washington, DC roll, which comes to 120,450 sq ft across 1,761 buildings.
Its assessed value works out to $398 per square foot of building area, against $370 across all office floor area on the roll.
What has happened at 1201 PENNSYLVANIA AVE NW recently?
The building files energy-benchmarking disclosures — 1 report year are matched to this parcel.
What does “Office (large)” mean for this parcel?
The Washington, DC roll classifies SSL 02910037 as “Office (large)” (use code 052). BuildingCensus includes a parcel in its office census when the roll gives it an office-class use, so the label is the county's, not an inference.
Frequently asked questions
Who owns 1201 PENNSYLVANIA AVE NW?
The recorded owner on the Washington, DC assessment roll (current) is 1201 LAND LP, DC ONE ASSOCIATES. Owner mailing address on file: 1201 PENNSYLVANIA AVE NW STE 510, WASHINGTON, DC, 20004.
What companies have offices at 1201 PENNSYLVANIA AVE NW?
7 active business locations at this building appear in Washington, DC public records, including N/A, WASHINGTON WINE & SPIRITS, D.C. ONE ASSOCIATES, Hudson Institute, FISCALNOTE, INC. Public records under-count tenants that don't hold a local receipt or register the address.
How big is 1201 PENNSYLVANIA AVE NW?
The Washington, DC roll records 642,329 sq ft of building area, a build year of 1980. It sits on a 50,903 sq ft lot.
What is the assessed value of 1201 PENNSYLVANIA AVE NW?
$255,660,070 on the Washington, DC roll. Assessed values are taxable-roll figures, not market prices.
What is the SSL for 1201 PENNSYLVANIA AVE NW?
SSL 02910037, site address 1201 PENNSYLVANIA AVE NW, Washington. It is the key to look the parcel up in the Integrated Tax System public extract (Washington, DC).
More around 1201 PENNSYLVANIA AVE NW
Everything here comes from public records, and public records go stale. If you know better, say so.
Data provenance — public records only
- Washington, DC — 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.
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.
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Dataset updated . Source: Washington, DC assessment roll, SSL 02910037.
About this data
Source: Integrated Tax System public extract (Washington, DC), as published September 20, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “1201 PENNSYLVANIA AVE NW, Washington, DC (SSL 02910037)”, https://buildingcensus.com/offices/dc/office-building-b76700b6 (data as of September 20, 2026).