600 PENNSYLVANIA AVE SE
Office (large) · Washington · 20003
At a glance
600 PENNSYLVANIA AVE SE in Washington, DC is listed on the Washington, DC property roll as “Office (large)”, SSL 08730112. The roll records 182,152 sq ft of building area, a 1975 build year and an assessed value of $19,712,180. 6 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 — 6 matched business locations
Tenants & business locations
| Company | Suite / floor | Since | Source | Match |
|---|---|---|---|---|
| AMNESTY INTERNATIONAL OF THE USA | — | Apr 2026 | DC business licence | folio match · high |
| Bond Vet | — | Sep 2025 | DC business licence | folio match · high |
| AMERICAN SOCIETY FOR THE PREVENTION OF CRUELTY TO ANIMALS, THE | — | Jul 2025 | DC business licence | folio match · high |
| SEE FOREVER FOUNDATION | 210 | May 2025 | DC business licence | folio match · high |
| T. Hudson Snow Development | — | Mar 2025 | DC business licence | folio match · high |
| COLONIAL PARKING | — | Dec 2024 | DC business licence | folio match · high |
Washington, DC assessment roll
Parcel record
| Field | Value |
|---|---|
| SSL | 08730112 |
| Site address | 600 PENNSYLVANIA AVE SE |
| Land use (DOR) | 052 — Office (large) |
| Building area (actual) | 182,152 sq ft |
| Floors / units / buildings | — / — / — |
| Lot size | 47,035 sq ft |
| Year built | 1975 |
| Zoning (primary) | — |
| Land value | — |
| Building value | — |
| Total assessed value | $19,712,180 |
Recorded owner (assessment roll)
BDC PENNSYLVANIA AVENUE LLC
Owner mailing address: 4800 HAMPDEN LN STE 1200, BETHESDA, MD, 20814
6 Washington office properties share this owner mailing address →
Commercial property is usually held one building per entity; a shared mailbox is how the roll reveals a portfolio. It is evidence of common ownership, not proof.
Location
- Address
- 600 PENNSYLVANIA AVE SE
- City
- Washington
- ZIP
- 20003
Within ~650 m
Nearby office buildings
No other office parcels within ~650 m.
How does 600 PENNSYLVANIA AVE SE compare with other Washington office buildings?
At 182,152 sq ft, 600 PENNSYLVANIA AVE SE is about 51% larger than 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 $108 per square foot of building area, against $370 across all office floor area on the roll.
Does the owner of 600 PENNSYLVANIA AVE SE hold other Washington office property?
6 Washington office properties (6 parcels, 514.9K sq ft) are recorded to 4 owner entities sharing this parcel's tax-bill mailing address. A shared mailing address is evidence of common ownership, not proof of it.
What has happened at 600 PENNSYLVANIA AVE SE 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 08730112 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 600 PENNSYLVANIA AVE SE?
The recorded owner on the Washington, DC assessment roll (current) is BDC PENNSYLVANIA AVENUE LLC. Owner mailing address on file: 4800 HAMPDEN LN STE 1200, BETHESDA, MD, 20814.
What companies have offices at 600 PENNSYLVANIA AVE SE?
6 active business locations at this building appear in Washington, DC public records, including AMNESTY INTERNATIONAL OF THE USA, Bond Vet, AMERICAN SOCIETY FOR THE PREVENTION OF CRUELTY TO ANIMALS, THE, SEE FOREVER FOUNDATION, T. Hudson Snow Development. Public records under-count tenants that don't hold a local receipt or register the address.
How big is 600 PENNSYLVANIA AVE SE?
The Washington, DC roll records 182,152 sq ft of building area, a build year of 1975. It sits on a 47,035 sq ft lot.
What is the assessed value of 600 PENNSYLVANIA AVE SE?
$19,712,180 on the Washington, DC roll. Assessed values are taxable-roll figures, not market prices.
What is the SSL for 600 PENNSYLVANIA AVE SE?
SSL 08730112, site address 600 PENNSYLVANIA AVE SE, Washington. It is the key to look the parcel up in the Integrated Tax System public extract (Washington, DC).
More around 600 PENNSYLVANIA AVE SE
- Washington, DC office buildings· 1,761 buildings
- BDC Q STREET LLC· 6 properties
- AMNESTY INTERNATIONAL OF THE USA· tenant on record
- Bond Vet· tenant on record
- AMERICAN SOCIETY FOR THE PREVENTION OF CRUELTY TO ANIMALS, THE· tenant on record
- SEE FOREVER FOUNDATION· suite 210
- Federal office leases in DC
- Office census — all metros
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 08730112.
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, “600 PENNSYLVANIA AVE SE, Washington, DC (SSL 08730112)”, https://buildingcensus.com/offices/dc/office-building-914e5723 (data as of September 20, 2026).