5423 1 AVENUE
Office building · Brooklyn · 11220
At a glance
5423 1 AVENUE in Brooklyn, NY is listed on the New York City property roll as “Office building”, BBL 3008200058. The roll records 98,319 sq ft of building area, a 2025 build year and an assessed value of $360,450.
New York City assessment roll
Parcel record
| Field | Value |
|---|---|
| BBL | 3008200058 |
| Site address | 5423 1 AVENUE |
| Land use (DOR) | O2 — Office building |
| Building area (actual) | 98,319 sq ft |
| Floors / units / buildings | — / 1 / 1 |
| Lot size | 20,034 sq ft |
| Year built | 2025 |
| Zoning (primary) | — |
| Land value | $360,450 |
| Building value | — |
| Total assessed value | $360,450 |
Recorded owner (assessment roll)
5423 FIRST AVENUE LLC
Owner mailing address: not listed
Location
- Address
- 5423 1 AVENUE
- City
- Brooklyn
- ZIP
- 11220
- Coordinates
- 40.64756, -74.02147
Within ~650 m
Nearby office buildings
- 14 53 STREET0 tenants
382,080 sq ft · 7 fl · 1918
- 215 54 STREET0 tenants
8,044 sq ft · 3 fl · 1931
- 5306 3 AVENUE0 tenants
8,000 sq ft · 2 fl · 1987
- 129 58 STREET0 tenants
5,375 sq ft · 3 fl · 2001
- 265 52 STREET0 tenants
4,940 sq ft · 3 fl · 1999
- 263 52 STREET0 tenants
4,940 sq ft · 3 fl · 1999
How does 5423 1 AVENUE compare with other New York office buildings?
At 98,319 sq ft, 5423 1 AVENUE is about 46% larger 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 $4 per square foot of building area, against $157 across all office floor area on the roll.
What does “Office building” mean for this parcel?
The New York City roll classifies BBL 3008200058 as “Office building” (use code O2). 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 5423 1 AVENUE?
The recorded owner on the New York City assessment roll (current) is 5423 FIRST AVENUE LLC.
How big is 5423 1 AVENUE?
The New York City roll records 98,319 sq ft of building area, a build year of 2025. It sits on a 20,034 sq ft lot.
What is the assessed value of 5423 1 AVENUE?
$360,450 on the New York City roll. Assessed values are taxable-roll figures, not market prices.
What is the BBL for 5423 1 AVENUE?
BBL 3008200058, site address 5423 1 AVENUE, Brooklyn. 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 5423 1 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 3008200058.
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, “5423 1 AVENUE, Brooklyn, NY (BBL 3008200058)”, https://buildingcensus.com/offices/nyc/office-building-6104558c (data as of September 11, 2026).