1900 M ST NW
Office (large) · Washington · 20036
The building's own benchmarking filing
Energy performance
From the building's own filing under the City of Miami'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 |
|---|---|---|---|---|
| Last Tangle in Washington LLC | — | Oct 2026 | dc_dlcp | folio match · high |
| ALTASOURCE MANAGEMENT COMPANY, LLC. | — | Aug 2026 | dc_dlcp | folio match · high |
| Americans for Carbon Dividends Inc | 800 | Feb 2026 | dc_dlcp | folio match · high |
| Climate Leadership Council | 800 | Feb 2026 | dc_dlcp | folio match · high |
| Just Salad Store #120 | — | Sep 2025 | dc_dlcp | folio match · high |
| Walter Reed MF Partners LLC | — | Jan 2025 | dc_dlcp | folio match · high |
| COMMITTEE FOR A RESPONSIBLE FEDERAL BUDGET | — | Apr 2023 | dc_dlcp | folio match · high |
Washington, DC assessment roll
Parcel record
| Field | Value |
|---|---|
| SSL | 01170079 |
| Site address | 1900 M ST NW |
| Land use (DOR) | 052 — Office (large) |
| Building area (actual) | 112,182 sq ft |
| Floors / units / buildings | — / — / — |
| Lot size | 17,782 sq ft |
| Year built | 1975 |
| Zoning (primary) | — |
| Land value | — |
| Building value | — |
| Total assessed value | $20,237,920 |
Recorded owner (assessment roll)
1900 M L L C
ROCKROSS DEVELOPMENT CORP
Owner mailing address: 15 E 26TH ST FL 7, NEW YORK, NY, 10010
8 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
- 1900 M ST NW
- City
- Washington
- ZIP
- 20036
Within ~650 m
Nearby office buildings
No other office parcels within ~650 m.
Frequently asked questions
Who owns 1900 M ST NW?
The recorded owner on the Washington, DC assessment roll (current) is 1900 M L L C, ROCKROSS DEVELOPMENT CORP. Owner mailing address on file: 15 E 26TH ST FL 7, NEW YORK, NY, 10010.
What companies have offices at 1900 M ST NW?
7 active business locations at this building appear in Washington, DC public records, including Last Tangle in Washington LLC, ALTASOURCE MANAGEMENT COMPANY, LLC., Americans for Carbon Dividends Inc, Climate Leadership Council, Just Salad Store #120. Public records under-count tenants that don't hold a local receipt or register the address.
How big is 1900 M ST NW?
The county assessment roll records 112,182 sq ft of building area, built in 1975, on a 17,782 sq ft lot, with a current assessed value of $20,237,920.
Everything here comes from public records, and public records go stale. If you know better, say so.
Data provenance — public records only
- Miami-Dade County Property Appraiser — assessment roll — Parcel identity, site address, recorded owner, use code, areas, year built and assessed values, via the county's public GIS services (MD_LandInformation, PaGis layer).
- Miami-Dade County Local Business Tax roll — Business-tax receipts: business name, premises address (incl. suite/floor), account status and start date, via the county's public GIS services.
- Florida Division of Corporations (Sunbiz) — corporate data file — Registered entities: document number, status, filing date, registered agent and principal address, from the state's public quarterly data file.
- Miami BE305 building-energy benchmarking disclosures — What the building reported about its own performance: energy intensity, an ENERGY STAR score, reported emissions and water use, under the City of Miami's benchmarking ordinance.
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 01170079.