451 Clarkson Avenue
BBL 3048290001Prospect Lefferts Gardens-Wingate · Brooklyn
Floors
5
Built
1930
Area
1503.2ksf
Units
0
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Address
PLUTO · DOF parcel identity
- Property address
- 451 CLARKSON AVENUE
- Alternate address(es)
- 410-418 Winthrop St444 Winthrop St554 Winthrop St604 Winthrop St441 Clarkson Ave449 Clarkson Ave471 Clarkson Ave489 Clarkson Ave541 Clarkson Ave689 New York Ave
- Zip code
- 11203
- Neighborhood
- Prospect Lefferts Gardens-Wingate
- Borough
- Brooklyn
- Block & lot
- 04829-0001
Zoning & buildable
Lot 891,577 sf · R5
- Zoning district
- R5
- PLUTO building class
- I1
FAR breakdown & buildable envelope — residential, commercial and community-facility headroom math in the full report.
Sign in to see itOwnership
PLUTO · owner of record
NYC HEALTH AND HOSPITALS CORPORATION
- Ownership form
- Other
- Last recorded sale
- None since 2000
Tenancy & use
PLUTO units + DHCR rent-stabilization roll
0residential unitsnon-stabilized
- Residential sq. ft.
- 0
- Commercial sq. ft.
- 1,503,150
- PLUTO class
- I1
Lot
PLUTO · DOF parcel geometry
- Lot area
- 891,577 sf
- Dimensions
- 542.2 × 1679.2 ft
- Position
- Corner lot
- Front street
- CLARKSON AVE
- Side street
- WINTHROP ST
- D/F ratio
- 3.1 — deep lot (atypical — possible corner or oversize)
Financial
NYC Department of Finance · assessment + last recorded sale
- Total assessment
- $145.7M
- Land value
- $12.6M
- Exempt
- $145.7M($0 taxable)
- $/sf (implied)
- $97
Debt history · 14 mortgages on record · refinance-window signal detected — lenders, amounts and maturity timing in the full report.
Sign in to see itCompliance
HPD & DOB · violations + complaints + jobs
Significant violations
61 open HPD violations · 0 open HPD complaints · 19 active DOB jobs
- HPD violations (24 months)
- 0
- DOB violations (24 months)
- 25
- HPD complaints (24 months)
- 1
- HPD complaints (open)
- 0
- DOB jobs (24 months)
- 28
$26.0M in alteration permits over last 24 months
Provenance
Every datum on this page is sourced from public NYC + federal datasets, refreshed on the schedule below.
| Source | What it covers | Last refresh |
|---|---|---|
| PLUTO | NYC DCP · physical / zoning / ownership baseline | Jul 9, 2026 |
| ACRIS | NYC DOF · deed + mortgage history | Jul 9, 2026 |
| HPD | Housing Preservation & Development · violations + complaints | Jul 9, 2026 |
| DOB | Department of Buildings · violations + permits | Jul 9, 2026 |
| DHCR | Rent Stabilization roll (through 2024) | Jul 9, 2026 |
| LPC | Landmarks Preservation Commission · landmark status | not loaded |
| Footprint | NYC DoITT photogrammetric building polygons | not loaded |
Assembled at Jul 9, 2026. Discrepancies between sources reflect upstream-data quality, not assembly bugs — file in our quality tracker.