521 COMMONWEALTH AVE, Bronx, NY 10473 — Property Records, Permits, Violations, Tax & Zoning | RegWatch

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Year Built1932

Floors6

Units61

Building Area46,680 sqft

ZoningR5

ClassD1

Market Value$3.9M

521 COMMONWEALTH AVE is a property located at 521 COMMONWEALTH AVE, Bronx, NY 10473. It is classified as a elevator apartment - semi-fireproof. The building was constructed in 1932. It has 6 floors and 61 units. The building area is 46,680 square feet on a 19,167 sqft lot. The property is zoned R5. The assessed market value is $3.9M. It last sold for $66.6M on Feb 3, 2016. Public records list the property as company-owned. There are 20 building permits on record (12 active). There are 197 violations on record (16 currently open). 17 docketed judgments carrying $8,905 in open balances are on record with OATH. Data sourced from NYC Department of Buildings (DOB), Housing Preservation & Development (HPD), Department of Finance (DOF), and other government agencies.

A RegWatch Dossier

651records on file

35Energy Star

Completed in 1932, 521 Commonwealth Ave rises 6 stories over Bronx. Public records put it at 61 units and 46,680 square feet of floor area, on land zoned R5. It is carried on the public rolls at a market value of $3.9M, and assessed for tax at $1.8M. In the 50 years its record reaches back, the lot has drawn 651 separate government filings.

The documentary life of the address leans hard toward complaint: 296 of its 651 records, fully 45%, fall under that one heading. Violation (197) and inspection (46) trail well behind. 16 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 2025.

On the environmental ledger, the building posts an Energy Star score of 35, with a site energy-use intensity of 112.2 kBtu per square foot. Its operations answer for roughly 322 metric tons of CO2-equivalent a year.

Read together — 45% complaint, 50 years of accumulation, a parcel of Bronx — these scattered records compose a portrait of the address that no single page sets out to draw.

$3.9M of Bronx, written across 651 government filings.

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Sources

NYC DOB NYC HPD NYC DOF ACRIS NYC DCP ECB/OATH NYC DEP NYC LPC NYC FDNY NYS DHCR MOCEJ FEMA EPA US Census HUD USGS

updated Aug 2, 2026

Property Details

Address521 COMMONWEALTH AVE, Bronx, NY 10473

Building TypeElevator Apartment - Semi-Fireproof

Building ClassD1

Year Built1932

Floors6

Total Units61

Building Area46,680 sqft

Lot Size19,167 sqft

ZoningR5

ConditionAverage

BBL2035190049

BIN2021311

OwnershipCompany-owned

Assessment & Sales

Market Value$3.9M

Assessed Total$1.8M

Assessed Land$414K

Last Sale Price$66.6M

Last Sale DateFeb 3, 2016

Building Permits

20 on record · 12 active

General ConstructionDOB NOW

LOC ISSUED

Filed Jan 20, 2026Est. cost $8KJob #X00829571-I1

View this permit's full record & inspection history →

General ConstructionDOB NOW

PERMIT ENTIRE

Filed Sep 18, 2025Est. cost $381KJob #X01047225-I1

View this permit's full record & inspection history →

General ConstructionDOB NOW

PERMIT ENTIRE

Filed Sep 4, 2025Est. cost $5KJob #X01112019-I1

View this permit's full record & inspection history →

Cats RegistrationOther

CURRENT

Filed May 13, 2025Job #463279

View this permit's full record & inspection history →

Sidewalk ShedDOB NOW

SIGNED-OFF

Filed Dec 19, 2024Est. cost $8KJob #X00829571-I1

Renewal Permit Without Changes

View this permit's full record & inspection history →

+ 15 more permits — view full report

Violations

197 on record · 16 open

Open judgment balance — docketed OATH judgments$8,905

Judgments · 17 docketed

FDNY summons (OATH)JUDGMENT DOCKETED

Docketed Mar 31, 2026Balance $725Ticket #014193567K

RECORDKEEPING

FDNY summons (OATH)JUDGMENT DOCKETED

Docketed Jun 30, 2026Balance $1,325Ticket #014193582Z

SIGN, POSTINGS, NOTICES AND INSTRUCTIONS

FDNY summons (OATH)JUDGMENT DOCKETED

Docketed May 31, 2025Ticket #014164794H

INSPECTION AND TESTING

FDNY summons (OATH)JUDGMENT DOCKETED

Docketed Mar 31, 2025Balance $5Ticket #014114615H

INSPECTION AND TESTING

FDNY summons (OATH)JUDGMENT DOCKETED

Docketed Jun 30, 2025Ticket #014114453Y

INSPECTION AND TESTING

+ 12 more docketed judgments — view full report

DOB LegacyLBLVIO

ACTIVE

Issued Nov 14, 2025#2802443

VIOLATION ISSUED-FAILURE TO FILE 2024 EXTERNAL LOW PRESSURE INSPECTION

View this violation's full details & status history →

HPDClass B

FIRST NO ACCESS TO RE- INSPECT VIOLATION

Issued Oct 5, 2025#18274174

§ 27-2026, 2027 HMC: PROPERLY REPAIR THE SOURCE AND ABATE THE EVIDENCE OF A WATER LEAK AT CEILING IN THE BATHROOM LOCATED AT APT H55, 5th STORY, 2nd APARTMENT FROM EAST AT SOUTH

View this violation's full details & status history →

HPDClass B

NOT COMPLIED WITH

Issued Oct 5, 2025#18274170

§ 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE VINYL FLOOR TILES IN THE KITCHEN LOCATED AT APT H42, 4th STORY, 1st APARTMENT FROM NORTH AT EAST

View this violation's full details & status history →

HPDClass C

FIRST NO ACCESS TO RE- INSPECT VIOLATION

Issued Oct 5, 2025#18274173

567 (C) § 27-2017, 27-2017.1, 27-2017.4, 27-2017.5, 27-2017.8, 27-2019, 27-2021 HMC: ABATE THE NUISANCE CONSISTING OF EVIDENCE OF RATS AND ALL UNDERLYING CAUSES CREATING THE PEST INFESTATIONS, BY USING INTEGRATED PEST MANAGEMENT (IPM), ELIMINATE ALL BURROW ENTRY AND PASSAGEWAYS, PEST NESTS, HOLES, GAPS OR CRACKS IN WALLS, CEILINGS, FLOORS, FIXING LEAKS AND MANAGING GARBAGE IN PUBLIC AREAS. EVIDENCE FOUND AT RATS IN THE ENTIRE APARTMENT LOCATED AT APT H55, 5th STORY, 2nd APARTMENT FROM EAST AT SOUTH

View this violation's full details & status history →

HPDClass B

FIRST NO ACCESS TO RE- INSPECT VIOLATION

Issued Oct 5, 2025#18274175

§ 27-2005 HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE ELECTRICAL OUTLET AT NORTH WALL IN THE KITCHEN LOCATED AT APT H55, 5th STORY, 2nd APARTMENT FROM EAST AT SOUTH

View this violation's full details & status history →

+ 192 more violations on record — view full report

Get the Complete Report for 521 COMMONWEALTH AVE

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

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Frequently Asked Questions

When was 521 COMMONWEALTH AVE, Bronx built?

The building at 521 COMMONWEALTH AVE, Bronx, NY 10473 was constructed in 1932. It is classified as a elevator apartment - semi-fireproof with 6 floors and 61 units. The building area is 46,680 sqft.

Are there building permits at 521 COMMONWEALTH AVE, Bronx?

Yes. 521 COMMONWEALTH AVE, Bronx, NY 10473 has 20 building permits on record, with 12 currently active. Permits are sourced from the NYC Department of Buildings (DOB Legacy and DOB NOW systems). The most recent permit is a General Construction (LOC ISSUED) filed Jan 20, 2026.

Does 521 COMMONWEALTH AVE, Bronx have violations?

Yes. 521 COMMONWEALTH AVE, Bronx, NY 10473 has 197 violations on record, with 16 currently open. Breakdown: 67 DOB, 17 ECB, 113 HPD. Sources: NYC DOB, HPD, and ECB/OATH.

Does 521 COMMONWEALTH AVE, Bronx have docketed judgments?

Yes. 521 COMMONWEALTH AVE, Bronx, NY 10473 has 17 docketed judgments on record with the NYC Office of Administrative Trials & Hearings (OATH), with an open balance of $8,905. A docketed judgment is an enforceable money judgment entered by OATH after a hearing on a summons issued at this property; where the respondent is the property owner it can attach to the property as a lien.

What is the property tax assessment for 521 COMMONWEALTH AVE?

521 COMMONWEALTH AVE, Bronx, NY 10473 has an assessed market value of $3.9M and a total assessed value of $1.8M (land: $414K). Assessment data is from the NYC Department of Finance (DOF).

When was 521 COMMONWEALTH AVE last sold?

521 COMMONWEALTH AVE, Bronx, NY 10473 last sold for $66.6M on Feb 3, 2016. Sale records are sourced from NYC ACRIS and Department of Finance rolling sales data.

What is the zoning for 521 COMMONWEALTH AVE?

521 COMMONWEALTH AVE, Bronx, NY 10473 is zoned R5. 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 521 COMMONWEALTH AVE?

521 COMMONWEALTH AVE, Bronx, NY 10473 is company-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 521 COMMONWEALTH AVE?

Search 521 COMMONWEALTH AVE 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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521 COMMONWEALTH AVE, Bronx, NY 10473 — Property Records, Permits, Violations, Tax & Zoning | RegWatch