2121 WISCONSIN AVE NW
Office (large) · Washington · 20007
At a glance
2121 WISCONSIN AVE NW in Washington, DC is listed on the Washington, DC property roll as “Office (large)”, SSL 12991026. The roll records 124,930 sq ft of building area, a 1961 build year and an assessed value of $13,342,970. It last sold for $27,700,000 in Feb 2022. 3 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 |
|---|---|---|---|---|
| Feb 2022 | $27,700,000 | 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 — 3 matched business locations
Tenants & business locations
| Company | Suite / floor | Since | Source | Match |
|---|---|---|---|---|
| N/A | 310 | Oct 2026 | DC business licence | folio match · high |
| MCDONALD CLEANING SYSTEMS INC. | 61 | Dec 2025 | DC business licence | folio match · high |
| George Sexton Associates, LLC. | — | Feb 2025 | DC business licence | folio match · high |
Washington, DC assessment roll
Parcel record
| Field | Value |
|---|---|
| SSL | 12991026 |
| Site address | 2121 WISCONSIN AVE NW |
| Land use (DOR) | 052 — Office (large) |
| Building area (actual) | 124,930 sq ft |
| Floors / units / buildings | — / — / — |
| Lot size | 23,396 sq ft |
| Year built | 1961 |
| Zoning (primary) | — |
| Land value | — |
| Building value | — |
| Total assessed value | $13,342,970 |
Recorded owner (assessment roll)
MNP 2121 WISCONSIN AVE LLC
LENOX AVENUE I LLC
Owner mailing address: 155 E 44TH ST # 44THFLOOR, NEW YORK, NY, 10017
Location
- Address
- 2121 WISCONSIN AVE NW
- City
- Washington
- ZIP
- 20007
Within ~650 m
Nearby office buildings
No other office parcels within ~650 m.
How does 2121 WISCONSIN AVE NW compare with other Washington office buildings?
At 124,930 sq ft, 2121 WISCONSIN AVE NW is roughly 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 $107 per square foot of building area, against $370 across all office floor area on the roll.
The last recorded sale priced it at $222 per square foot.
What has happened at 2121 WISCONSIN AVE NW recently?
1 recorded transfer is on file for this parcel, the latest dated Feb 2022.
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 12991026 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 2121 WISCONSIN AVE NW?
The recorded owner on the Washington, DC assessment roll (current) is MNP 2121 WISCONSIN AVE LLC, LENOX AVENUE I LLC. Owner mailing address on file: 155 E 44TH ST # 44THFLOOR, NEW YORK, NY, 10017.
What companies have offices at 2121 WISCONSIN AVE NW?
3 active business locations at this building appear in Washington, DC public records, including N/A, MCDONALD CLEANING SYSTEMS INC., George Sexton Associates, LLC.. Public records under-count tenants that don't hold a local receipt or register the address.
How big is 2121 WISCONSIN AVE NW?
The Washington, DC roll records 124,930 sq ft of building area, a build year of 1961. It sits on a 23,396 sq ft lot.
What is the assessed value of 2121 WISCONSIN AVE NW?
$13,342,970 on the Washington, DC roll. Assessed values are taxable-roll figures, not market prices.
When did 2121 WISCONSIN AVE NW last sell?
The last recorded transfer was in Feb 2022 for $27,700,000 ($222 per square foot).
What is the SSL for 2121 WISCONSIN AVE NW?
SSL 12991026, site address 2121 WISCONSIN AVE NW, Washington. It is the key to look the parcel up in the Integrated Tax System public extract (Washington, DC).
More around 2121 WISCONSIN AVE 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 12991026.
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, “2121 WISCONSIN AVE NW, Washington, DC (SSL 12991026)”, https://buildingcensus.com/offices/dc/office-building-62ac5d38 (data as of September 20, 2026).