21-01 51 AVENUE
Office building · Queens · 11101
At a glance
21-01 51 AVENUE in Queens, NY is listed on the New York City property roll as “Office building”, BBL 4000700001. The roll records 45,977 sq ft of building area, 3 floors, a 1913 build year and an assessed value of $5,917,950.
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.
New York City assessment roll
Parcel record
| Field | Value |
|---|---|
| BBL | 4000700001 |
| Site address | 21-01 51 AVENUE |
| Land use (DOR) | O5 — Office building |
| Building area (actual) | 45,977 sq ft |
| Floors / units / buildings | 3 / 3 / 1 |
| Lot size | 18,766 sq ft |
| Year built | 1913 |
| Zoning (primary) | — |
| Land value | $675,450 |
| Building value | — |
| Total assessed value | $5,917,950 |
Recorded owner (assessment roll)
MARTIAL ENTERPRISES INC
Owner mailing address: not listed
Location
- Address
- 21-01 51 AVENUE
- City
- Queens
- ZIP
- 11101
- Coordinates
- 40.74124, -73.94911
Within ~650 m
Nearby office buildings
- 25-01 JACKSON AVENUE0 tenants
1,359,110 sq ft · 49 fl · 1987
- 45-18 COURT SQUARE0 tenants
213,103 sq ft · 6 fl · 1920
- 25-11 49 AVENUE0 tenants
193,197 sq ft · 9 fl · 2019
- 47-40 21 STREET0 tenants
179,575 sq ft · 10 fl · 1930
- 21-09 BORDEN AVENUE0 tenants
168,000 sq ft · 7 fl · 1930
- 21-02 49 AVENUE0 tenants
129,087 sq ft · 7 fl · 1916
How does 21-01 51 AVENUE compare with other New York office buildings?
At 45,977 sq ft, 21-01 51 AVENUE is about 32% smaller than the average office building on the New York City roll, which comes to 67,377 sq ft across 7,166 buildings.
Its assessed value works out to $129 per square foot of building area, against $157 across all office floor area on the roll.
What has happened at 21-01 51 AVENUE recently?
The building files energy-benchmarking disclosures — 1 report year are matched to this parcel.
What does “Office building” mean for this parcel?
The New York City roll classifies BBL 4000700001 as “Office building” (use code O5). 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 21-01 51 AVENUE?
The recorded owner on the New York City assessment roll (current) is MARTIAL ENTERPRISES INC.
How big is 21-01 51 AVENUE?
The New York City roll records 45,977 sq ft of building area, 3 floors, a build year of 1913. It sits on a 18,766 sq ft lot.
What is the assessed value of 21-01 51 AVENUE?
$5,917,950 on the New York City roll. Assessed values are taxable-roll figures, not market prices.
What is the BBL for 21-01 51 AVENUE?
BBL 4000700001, site address 21-01 51 AVENUE, Queens. It is the key to look the parcel up in the Department of City Planning PLUTO extract and Department of Finance rolling sales (New York City).
More around 21-01 51 AVENUE
Everything here comes from public records, and public records go stale. If you know better, say so.
Data provenance — public records only
- New York City — Department of City Planning PLUTO extract and Department of Finance rolling sales. The city publishes no owner mailing address, so landlord portfolios cannot be grouped here, and its business licences cover regulated trades rather than office tenants.
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: New York City assessment roll, BBL 4000700001.
About this data
Source: Department of City Planning PLUTO extract and Department of Finance rolling sales (New York City), as published September 11, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “21-01 51 AVENUE, Queens, NY (BBL 4000700001)”, https://buildingcensus.com/offices/nyc/office-building-1ed7640c (data as of September 11, 2026).