2445 M ST NW
Office (large) · Washington · 20037
At a glance
2445 M ST NW in Washington, DC is listed on the Washington, DC property roll as “Office (large)”, SSL 00240871. The roll records 397,105 sq ft of building area, a 1986 build year and an assessed value of $104,606,720. It last sold for $101,000,000 in Mar 2026. 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.
Recorded transfers — county roll + state sale file
Sale history
| Recorded | Price | Qualification | Source | Instrument |
|---|---|---|---|---|
| Mar 2026 | $101,000,000 | not rated | County roll | — |
| Jun 2018 | $101,600,000 | 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 — 7 matched business locations
Tenants & business locations
| Company | Suite / floor | Since | Source | Match |
|---|---|---|---|---|
| Rights and Resources Initiative | — | Sep 2026 | DC business licence | folio match · high |
| N/A | — | Sep 2026 | DC business licence | folio match · high |
| The Rockefeller | — | Jul 2026 | DC business licence | folio match · high |
| PENZANCE MANAGEMENT, L.L.C. | — | May 2026 | DC business licence | folio match · high |
| LAZ PARKING MID-ATLANTIC LLCvia LAZ PARKING MID ATLANTIC, LLC | — | Jul 2025 | DC business licence | folio match · high |
| RAILS TO TRAILS CONSERVANCY | 650 | Feb 2025 | DC business licence | folio match · high |
| ZERO TO THREE: NATIONAL CENTER FOR INFANTS, TODDLERS AND FAMILIES | 305 | Jan 2025 | DC business licence | folio match · high |
Washington, DC assessment roll
Parcel record
| Field | Value |
|---|---|
| SSL | 00240871 |
| Site address | 2445 M ST NW |
| Land use (DOR) | 052 — Office (large) |
| Building area (actual) | 397,105 sq ft |
| Floors / units / buildings | — / — / — |
| Lot size | 43,875 sq ft |
| Year built | 1986 |
| Zoning (primary) | — |
| Land value | — |
| Building value | — |
| Total assessed value | $104,606,720 |
Recorded owner (assessment roll)
2445 M STREET OWNER, LLC
Owner mailing address: 510 MADISON AVE FL 18, NEW YORK, NY, 10022
2 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
- 2445 M ST NW
- City
- Washington
- ZIP
- 20037
Within ~650 m
Nearby office buildings
No other office parcels within ~650 m.
How does 2445 M ST NW compare with other Washington office buildings?
At 397,105 sq ft, 2445 M ST NW is about 3 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 $263 per square foot of building area, against $370 across all office floor area on the roll.
The last recorded sale priced it at $254 per square foot.
Does the owner of 2445 M ST NW hold other Washington office property?
2 Washington office properties (2 parcels, 600.1K sq ft) are recorded to 2 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 2445 M ST NW recently?
2 recorded transfers are on file for this parcel, the latest dated Mar 2026.
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 00240871 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 2445 M ST NW?
The recorded owner on the Washington, DC assessment roll (current) is 2445 M STREET OWNER, LLC. Owner mailing address on file: 510 MADISON AVE FL 18, NEW YORK, NY, 10022.
What companies have offices at 2445 M ST NW?
7 active business locations at this building appear in Washington, DC public records, including Rights and Resources Initiative, N/A, The Rockefeller, PENZANCE MANAGEMENT, L.L.C., LAZ PARKING MID-ATLANTIC LLC. Public records under-count tenants that don't hold a local receipt or register the address.
How big is 2445 M ST NW?
The Washington, DC roll records 397,105 sq ft of building area, a build year of 1986. It sits on a 43,875 sq ft lot.
What is the assessed value of 2445 M ST NW?
$104,606,720 on the Washington, DC roll. Assessed values are taxable-roll figures, not market prices.
When did 2445 M ST NW last sell?
The last recorded transfer was in Mar 2026 for $101,000,000 ($254 per square foot).
What is the SSL for 2445 M ST NW?
SSL 00240871, site address 2445 M ST NW, Washington. It is the key to look the parcel up in the Integrated Tax System public extract (Washington, DC).
More around 2445 M 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.
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Dataset updated . Source: Washington, DC assessment roll, SSL 00240871.
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, “2445 M ST NW, Washington, DC (SSL 00240871)”, https://buildingcensus.com/offices/dc/office-building-1734adfb (data as of September 20, 2026).