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Brooklyn

450 Warren St

Brooklyn, NY 11217Individually ownedBBL 3003991101BIN 3006366
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Updated Aug 1, 2026 · 16 sources

Year Built2020
Floors5
Building Area32,004 sqft
ZoningM1-4/R6A
ClassR4
Market Value$683K

450 WARREN ST is a property located at 450 WARREN ST, Brooklyn, NY 11217. The building was constructed in 2020. The building has 5 floors. The building area is 32,004 square feet on a 12,500 sqft lot. The property is zoned M1-4/R6A. The assessed market value is $683K. It last sold for $2.7M on Mar 6, 2026. Public records list the property as individually owned. There are 9 building permits on record (9 active). Data sourced from NYC Department of Buildings (DOB), Housing Preservation & Development (HPD), Department of Finance (DOF), and other government agencies.

A RegWatch Dossier

217records on file
54Energy Star

Completed in 2020, 450 Warren St rises 5 stories over Kings. Public records put it at 32,004 square feet of floor area, on land zoned M1-4/R6A. It is carried on the public rolls at a market value of $683K, and assessed for tax at $308K. In the 37 years its record reaches back, the lot has drawn 217 separate government filings.

The documentary life of the address leans hard toward release: 101 of its 217 records, fully 47%, fall under that one heading. Sale (40) and mortgage (36) trail well behind. No violations stand open against it today.

The pace is anything but even. The early decades pass in near silence; the filings cluster heavily in recent years, peaking in 2022.

On the environmental ledger, the building posts an Energy Star score of 54, with a site energy-use intensity of 54.8 kBtu per square foot. Its operations answer for roughly 154 metric tons of CO2-equivalent a year.

Read together — 47% release, 37 years of accumulation, a parcel of Kings — these scattered records compose a portrait of the address that no single page sets out to draw.

$683K of Kings, written across 217 government filings.

Open the live report — daily-updated data, AI chat & alerts
Sources
NYC DOBNYC HPDNYC DOFACRISNYC DCPECB/OATHNYC DEPNYC LPCNYC FDNYNYS DHCRMOCEJFEMAEPAUS CensusHUDUSGS
updated

Property Details

Address450 WARREN ST, Brooklyn, NY 11217
R4
Year Built2020
Floors5
Total UnitsN/A
Building Area32,004 sqft
Lot Size12,500 sqft
ZoningM1-4/R6A
3003991101
3006366
OwnershipIndividually owned

Assessment & Sales

$683K
$308K
$69K
$2.7M
Last Sale DateMar 6, 2026

Building Permits

9 on record · 9 active
New BuildingDOB Legacy
ISSUED
Filed Dec 22, 2021Job #321594262-01-03
View this permit's full record & inspection history →
PlumbingDOB Legacy
ISSUED
Filed Jun 8, 2021Job #321594262-03-02

PL

View this permit's full record & inspection history →
New BuildingDOB Legacy
ISSUED
Filed May 4, 2021Job #321594262-01-02
View this permit's full record & inspection history →
Construction EquipmentDOB Legacy
ISSUED
Filed Nov 20, 2020Job #340787777-01-01

EQ

View this permit's full record & inspection history →
PlumbingDOB Legacy
ISSUED
Filed Jun 8, 2020Job #321594262-03-01

PL

View this permit's full record & inspection history →

+ 4 more permits — view full report

Violations

none on record

No violations found in local records.

Get the Complete Report for 450 WARREN ST

Title history, detailed tax records, environmental data, zoning analysis, and more from 250+ government sources.

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Frequently Asked Questions

When was 450 WARREN ST, Brooklyn built?

The building at 450 WARREN ST, Brooklyn, NY 11217 was constructed in 2020. with 5 floors. The building area is 32,004 sqft.

Are there building permits at 450 WARREN ST, Brooklyn?

Yes. 450 WARREN ST, Brooklyn, NY 11217 has 9 building permits on record, with 9 currently active. Permits are sourced from the NYC Department of Buildings (DOB Legacy and DOB NOW systems). The most recent permit is a New Building (ISSUED) filed Dec 22, 2021.

Does 450 WARREN ST, Brooklyn have violations?

No violations were found in local records for 450 WARREN ST, Brooklyn, NY 11217. Violation data is sourced from DOB (safety and legacy), HPD (housing), and ECB (environmental control).

Does 450 WARREN ST, Brooklyn have docketed judgments?

No docketed OATH judgments were found in local records for 450 WARREN ST, Brooklyn, NY 11217. Judgment data is sourced from NYC Office of Administrative Trials & Hearings (OATH) hearing records.

What is the property tax assessment for 450 WARREN ST?

450 WARREN ST, Brooklyn, NY 11217 has an assessed market value of $683K and a total assessed value of $308K (land: $69K). Assessment data is from the NYC Department of Finance (DOF).

When was 450 WARREN ST last sold?

450 WARREN ST, Brooklyn, NY 11217 last sold for $2.7M on Mar 6, 2026. Sale records are sourced from NYC ACRIS and Department of Finance rolling sales data.

What is the zoning for 450 WARREN ST?

450 WARREN ST, Brooklyn, NY 11217 is zoned M1-4/R6A. Zoning data is from the NYC Department of City Planning (DCP). For detailed FAR, overlays, and development rights, view the full property report on RegWatch.

Who owns 450 WARREN ST?

450 WARREN ST, Brooklyn, NY 11217 is individually owned according to public records. Ownership data is from NYC Department of Finance assessment rolls. View the current owner of record and registered contacts in the full property report on RegWatch.

How do I get a full property report for 450 WARREN ST?

Search 450 WARREN ST on RegWatch to see its public record free — violations, permits, tax records, zoning, environmental data, and more from 250+ government sources, no credit card required. A Full Analysis report adds the complete title history, owner contacts, and a downloadable PDF.

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450 WARREN ST, Brooklyn, NY 11217 — Property Records, Permits, Violations, Tax & Zoning | RegWatch