600 5TH ST NW
Office (large) · Washington · 20001
At a glance
600 5TH ST NW in Washington, DC is listed on the Washington, DC property roll as “Office (large)”, SSL 04870017. The roll records 423,710 sq ft of building area, a 2025 build year and an assessed value of $314,845,350. 2 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, latest of 2 years on record. 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 — 2 matched business locations
Tenants & business locations
| Company | Suite / floor | Since | Source | Match |
|---|---|---|---|---|
| N/A | — | Oct 2026 | DC business licence | folio match · high |
| COLONIAL PARKING | — | Nov 2025 | DC business licence | folio match · high |
Washington, DC assessment roll
Parcel record
| Field | Value |
|---|---|
| SSL | 04870017 |
| Site address | 600 5TH ST NW |
| Land use (DOR) | 052 — Office (large) |
| Building area (actual) | 423,710 sq ft |
| Floors / units / buildings | — / — / — |
| Lot size | 48,041 sq ft |
| Year built | 2025 |
| Zoning (primary) | — |
| Land value | — |
| Building value | — |
| Total assessed value | $314,845,350 |
Recorded owner (assessment roll)
WASHINGTON METROPOLITAN AREA TRANSIT AUTHORITY (WMATA)
Owner mailing address: 1901 L ST NW STE 610, WASHINGTON, DC, 20036
Location
- Address
- 600 5TH ST NW
- City
- Washington
- ZIP
- 20001
Within ~650 m
Nearby office buildings
No other office parcels within ~650 m.
How does 600 5TH ST NW compare with other Washington office buildings?
At 423,710 sq ft, 600 5TH ST NW is about 4 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 $743 per square foot of building area, against $370 across all office floor area on the roll.
What has happened at 600 5TH ST NW recently?
The building files energy-benchmarking disclosures — 2 report years are matched to this parcel.
What does “Office (large)” mean for this parcel?
The Washington, DC roll classifies SSL 04870017 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 5TH ST NW?
The recorded owner on the Washington, DC assessment roll (current) is WASHINGTON METROPOLITAN AREA TRANSIT AUTHORITY (WMATA). Owner mailing address on file: 1901 L ST NW STE 610, WASHINGTON, DC, 20036.
What companies have offices at 600 5TH ST NW?
2 active business locations at this building appear in Washington, DC public records, including N/A, COLONIAL PARKING. Public records under-count tenants that don't hold a local receipt or register the address.
How big is 600 5TH ST NW?
The Washington, DC roll records 423,710 sq ft of building area, a build year of 2025. It sits on a 48,041 sq ft lot.
What is the assessed value of 600 5TH ST NW?
$314,845,350 on the Washington, DC roll. Assessed values are taxable-roll figures, not market prices.
What is the SSL for 600 5TH ST NW?
SSL 04870017, site address 600 5TH ST NW, Washington. It is the key to look the parcel up in the Integrated Tax System public extract (Washington, DC).
More around 600 5TH ST 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.
Working with Washington office parcels? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
Dataset updated . Source: Washington, DC assessment roll, SSL 04870017.
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 5TH ST NW, Washington, DC (SSL 04870017)”, https://buildingcensus.com/offices/dc/office-building-98f23b8e (data as of September 20, 2026).