1 M ST SE
Office (large) · Washington · 20003
At a glance
1 M ST SE in Washington, DC is listed on the Washington, DC property roll as “Office (large)”, SSL 07000877. The roll records 172,263 sq ft of building area, a 2020 build year and an assessed value of $36,413,520. It last sold for $62,760,305 in Sep 2019. 5 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.
Recorded transfers — county roll + state sale file
Sale history
| Recorded | Price | Qualification | Source | Instrument |
|---|---|---|---|---|
| Sep 2019 | $62,760,305 | not rated | County roll | — |
Prices are the consideration recorded in Washington, DC's public property records. Where a qualification code exists it is the assessor's judgement of whether a transfer was arm's length; transfers without one appear unrated rather than assumed clean. Whether a building is on the market today, and at what price, is not a public record and is not shown here — asking prices, listings and lease terms live in private commercial databases.
Public record — 5 matched business locations
Tenants & business locations
| Company | Suite / floor | Since | Source | Match |
|---|---|---|---|---|
| Hdr Engineering, Inc.via HDR ENGINEERING Inc. | 250 | Nov 2026 | DC business licence | folio match · high |
| Scissors & Scotch | — | Jul 2026 | DC business licence | folio match · high |
| DC SEU District of Columbia Sustainable Energy Utility | FLOOR# 3 | Feb 2026 | DC business licence | folio match · high |
| COLONIAL PARKING | — | Apr 2025 | DC business licence | folio match · high |
| Alpaca LLC | — | Jan 2025 | DC business licence | folio match · high |
Washington, DC assessment roll
Parcel record
| Field | Value |
|---|---|
| SSL | 07000877 |
| Site address | 1 M ST SE |
| Land use (DOR) | 052 — Office (large) |
| Building area (actual) | 172,263 sq ft |
| Floors / units / buildings | — / — / — |
| Lot size | 17,541 sq ft |
| Year built | 2020 |
| Zoning (primary) | — |
| Land value | — |
| Building value | — |
| Total assessed value | $36,413,520 |
Recorded owner (assessment roll)
1M PROPERTIES LLC
Owner mailing address: 1 M ST SE FL 6, WASHINGTON, DC, 20003
Location
- Address
- 1 M ST SE
- City
- Washington
- ZIP
- 20003
Within ~650 m
Nearby office buildings
No other office parcels within ~650 m.
How does 1 M ST SE compare with other Washington office buildings?
At 172,263 sq ft, 1 M ST SE is about 43% 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 $211 per square foot of building area, against $370 across all office floor area on the roll.
The last recorded sale priced it at $364 per square foot.
What has happened at 1 M ST SE recently?
1 recorded transfer is on file for this parcel, the latest dated Sep 2019.
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 07000877 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 1 M ST SE?
The recorded owner on the Washington, DC assessment roll (current) is 1M PROPERTIES LLC. Owner mailing address on file: 1 M ST SE FL 6, WASHINGTON, DC, 20003.
What companies have offices at 1 M ST SE?
5 active business locations at this building appear in Washington, DC public records, including Hdr Engineering, Inc., Scissors & Scotch, DC SEU District of Columbia Sustainable Energy Utility, COLONIAL PARKING, Alpaca LLC. Public records under-count tenants that don't hold a local receipt or register the address.
How big is 1 M ST SE?
The Washington, DC roll records 172,263 sq ft of building area, a build year of 2020. It sits on a 17,541 sq ft lot.
What is the assessed value of 1 M ST SE?
$36,413,520 on the Washington, DC roll. Assessed values are taxable-roll figures, not market prices.
When did 1 M ST SE last sell?
The last recorded transfer was in Sep 2019 for $62,760,305 ($364 per square foot).
What is the SSL for 1 M ST SE?
SSL 07000877, site address 1 M ST SE, Washington. It is the key to look the parcel up in the Integrated Tax System public extract (Washington, DC).
More around 1 M ST SE
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 07000877.
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, “1 M ST SE, Washington, DC (SSL 07000877)”, https://buildingcensus.com/offices/dc/office-building-226a15f4 (data as of September 20, 2026).