21-09 BORDEN AVENUE
Office building · Queens · 11101
At a glance
21-09 BORDEN AVENUE in Queens, NY is listed on the New York City property roll as “Office building”, BBL 4000690004. The roll records 168,000 sq ft of building area, 7 floors, a 1930 build year and an assessed value of $14,304,600. It last sold for $21,500,000 in Dec 2025.
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 |
|---|---|---|---|---|
| Dec 2025 | $21,500,000 | not rated | County roll | — |
Prices are the consideration recorded in New York City'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.
New York City assessment roll
Parcel record
| Field | Value |
|---|---|
| BBL | 4000690004 |
| Site address | 21-09 BORDEN AVENUE |
| Land use (DOR) | O6 — Office building |
| Building area (actual) | 168,000 sq ft |
| Floors / units / buildings | 7 / 6 / 1 |
| Lot size | 31,500 sq ft |
| Year built | 1930 |
| Zoning (primary) | — |
| Land value | $1,417,500 |
| Building value | — |
| Total assessed value | $14,304,600 |
Recorded owner (assessment roll)
BLANCHARD 2109 LLC
Owner mailing address: not listed
Location
- Address
- 21-09 BORDEN AVENUE
- City
- Queens
- ZIP
- 11101
- Coordinates
- 40.74067, -73.94909
Within ~650 m
Nearby office buildings
- 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
- 21-02 49 AVENUE0 tenants
129,087 sq ft · 7 fl · 1916
- 21-01 51 AVENUE0 tenants
45,977 sq ft · 3 fl · 1913
- 1164 MANHATTAN AVENUE0 tenants
38,066 sq ft · 4 fl · 1931
How does 21-09 BORDEN AVENUE compare with other New York office buildings?
At 168,000 sq ft, 21-09 BORDEN AVENUE is about twice the size of 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 $85 per square foot of building area, against $157 across all office floor area on the roll.
The last recorded sale priced it at $128 per square foot.
What has happened at 21-09 BORDEN AVENUE recently?
1 recorded transfer is on file for this parcel, the latest dated Dec 2025.
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 4000690004 as “Office building” (use code O6). 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 21-09 BORDEN AVENUE?
The recorded owner on the New York City assessment roll (current) is BLANCHARD 2109 LLC.
How big is 21-09 BORDEN AVENUE?
The New York City roll records 168,000 sq ft of building area, 7 floors, a build year of 1930. It sits on a 31,500 sq ft lot.
What is the assessed value of 21-09 BORDEN AVENUE?
$14,304,600 on the New York City roll. Assessed values are taxable-roll figures, not market prices.
When did 21-09 BORDEN AVENUE last sell?
The last recorded transfer was in Dec 2025 for $21,500,000 ($128 per square foot).
What is the BBL for 21-09 BORDEN AVENUE?
BBL 4000690004, site address 21-09 BORDEN 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 21-09 BORDEN 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 4000690004.
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, “21-09 BORDEN AVENUE, Queens, NY (BBL 4000690004)”, https://buildingcensus.com/offices/nyc/office-building-93ad7710 (data as of September 11, 2026).