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Brooklyn

520 Hart St

Brooklyn, NY 11221Individually ownedBBL 3032251001BIN 3426687
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Updated Aug 1, 2026 · 16 sources

Year Built2020
Floors4
Building Area6,218 sqft
ZoningR6
ClassR1
Market Value$288K

520 HART ST is a property located at 520 HART ST, Brooklyn, NY 11221. The building was constructed in 2020. The building has 4 floors. The building area is 6,218 square feet on a 1,875 sqft lot. The property is zoned R6. The assessed market value is $288K. It last sold for $692K on Feb 18, 2022. Public records list the property as individually owned. There are 21 building permits on record (8 active). There are 9 violations on record (0 currently open). Data sourced from NYC Department of Buildings (DOB), Housing Preservation & Development (HPD), Department of Finance (DOF), and other government agencies.

A RegWatch Dossier

46records on file

Completed in 2020, 520 Hart St rises 4 stories over Kings. Public records put it at 6,218 square feet of floor area, on land zoned R6. It is carried on the public rolls at a market value of $288K, and assessed for tax at $130K. In the 6 years its record reaches back, the lot has drawn 46 separate government filings.

The documentary life of the address leans hard toward permit: 21 of its 46 records, fully 46%, fall under that one heading. Complaint (10) and violation (9) trail well behind. No violations stand open against it today.

The pace is anything but even. The record runs hot early and quiets with age, with 2020 its single busiest year.

Read together — 46% permit, 6 years of accumulation, a parcel of Kings — these scattered records compose a portrait of the address that no single page sets out to draw.

$288K of Kings, written across 46 government filings.

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Sources
NYC DOBNYC HPDNYC DOFACRISNYC DCPECB/OATHNYC DEPNYC LPCNYC FDNYNYS DHCRMOCEJFEMAEPAUS CensusHUDUSGS
updated

Property Details

Address520 HART ST, Brooklyn, NY 11221
R1
Year Built2020
Floors4
Total UnitsN/A
Building Area6,218 sqft
Lot Size1,875 sqft
ZoningR6
3032251001
3426687
OwnershipIndividually owned

Assessment & Sales

$288K
$130K
$11K
$692K
Last Sale DateFeb 18, 2022

Building Permits

21 on record · 8 active
New BuildingDOB Legacy
SIGNED OFF
Filed Jan 14, 2022Job #321384916-01

GEN. CONSTR.

View this permit's full record & inspection history →
New BuildingDOB Legacy
SIGNED OFF
Filed Jan 14, 2022Job #321384916-03
View this permit's full record & inspection history →
New BuildingDOB Legacy
SIGNED OFF
Filed Jan 14, 2022Job #321384916-04

SOE

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New BuildingDOB Legacy
SIGNED OFF
Filed Jan 14, 2022Job #321384916-02
View this permit's full record & inspection history →
New BuildingDOB Legacy
SIGNED OFF
Filed Jan 14, 2022Job #321384916-05

STRUCTURAL

View this permit's full record & inspection history →

+ 16 more permits — view full report

Violations

9 on record · none currently open
ECBSite Safety
RESOLVE
Issued Jul 1, 2020#35497280H

FAILURE TO MAINTAIN/DISPLAY ON SITE DOCUMENTS REQUIRED BY BC CHAPTER 33. NOTED: AT TIME OF INSPECTION I OBSERVED ACTIVE SITE FOR WHICH A CS IS REQUIRED W/THE FOLLOWING REQUIRE DOCUMENTS NOT AVAILABLE ON SITE:

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ECBConstruction
RESOLVE
Issued Jul 1, 2020#35497277R

SEC. 3308.7 FAILURE TO INSTALLED & MAINTAIN A COMPLETE GUARDRAIL SYSTEM TO PROTECT ALL UNENCLOSED PERIMETERS. NOTED: AT TIME OF INSPECTION IOBSERVED ACTIVE SITE W/SEVERAL WORKERS USING PIPE SCAFFOLDING TO PERFO

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ECBConstruction
RESOLVE
Issued Jul 1, 2020#35497279K

PEDESTRIAN PROTECTION DOES NOT MEET CODE SPECIFICATIONS. SHED NOT EXTEND CORNER EXP#2 & 3 SPECIFICATIONS. SHED NOT EXTEND CORNER EXP#2&3. NOTED: AT TIME OF INSPECTION I OBSERVED ACTIVE SITE FOR WHICH A CS IS RE

View this violation's full details & status history →
ECBConstruction
RESOLVE
Issued Jul 1, 2020#35497276P

FAILURE TO MAINTAIN/INSTITUTE ALL SAFETY MEASURES & STANDARDS. NOTED: AT TIME OF INSPECTION I OBSERVED ACTIVE SITE W/NO CLEAR PATH OF EGRESS TO & FROM THE SITE. THE PATH OF EGRESS IS OBSTRUCTED BY CONSTRUCTION

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ECBConstruction
RESOLVE
Issued Jul 1, 2020#35497281J

SEC. 3314.1 FAILURE TO INSTALL SUPPORTED SCAFFOLD AS PER CODE. UNSAFE SUPPORTED SCAFFOLD. NOTED: AT TIME OF INSPECTION I OBSERVED ACTIVE SITE W/SEVERAL WORKERS USING THE INSTALLED SCAFFOLD ON THE WORKERS USING

View this violation's full details & status history →

+ 4 more violations on record — view full report

Get the Complete Report for 520 HART 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 520 HART ST, Brooklyn built?

The building at 520 HART ST, Brooklyn, NY 11221 was constructed in 2020. with 4 floors. The building area is 6,218 sqft.

Are there building permits at 520 HART ST, Brooklyn?

Yes. 520 HART ST, Brooklyn, NY 11221 has 21 building permits on record, with 8 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 (SIGNED OFF) filed Jan 14, 2022.

Does 520 HART ST, Brooklyn have violations?

Yes. 520 HART ST, Brooklyn, NY 11221 has 9 violations on record, with 0 currently open. Breakdown: 1 DOB, 8 ECB. Sources: NYC DOB, HPD, and ECB/OATH.

Does 520 HART ST, Brooklyn have docketed judgments?

No docketed OATH judgments were found in local records for 520 HART ST, Brooklyn, NY 11221. Judgment data is sourced from NYC Office of Administrative Trials & Hearings (OATH) hearing records.

What is the property tax assessment for 520 HART ST?

520 HART ST, Brooklyn, NY 11221 has an assessed market value of $288K and a total assessed value of $130K (land: $11K). Assessment data is from the NYC Department of Finance (DOF).

When was 520 HART ST last sold?

520 HART ST, Brooklyn, NY 11221 last sold for $692K on Feb 18, 2022. Sale records are sourced from NYC ACRIS and Department of Finance rolling sales data.

What is the zoning for 520 HART ST?

520 HART ST, Brooklyn, NY 11221 is zoned R6. 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 520 HART ST?

520 HART ST, Brooklyn, NY 11221 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 520 HART ST?

Search 520 HART 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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520 HART ST, Brooklyn, NY 11221 — Property Records, Permits, Violations, Tax & Zoning | RegWatch