Bronx • Office

521 Bergen Ave

Bronx, NY 10455Company-ownedBBL 2022930023BIN 2000530

Updated Aug 1, 2026 · 16 sources

Year Built1904
Floors6
Units3
Building Area52,114 sqft
ZoningC4-4
ClassO5
Market Value$7.8M

521 BERGEN AVE is a property located at 521 BERGEN AVE, Bronx, NY 10455. It is classified as a office - non-combustible. The building was constructed in 1904. It has 6 floors and 3 units. The building area is 52,114 square feet on a 7,450 sqft lot. The property is zoned C4-4. The assessed market value is $7.8M. It last sold for $11.8M on Aug 14, 2019. Public records list the property as company-owned. There are 78 building permits on record (40 active). There are 50 violations on record (0 currently open). 13 docketed judgments carrying $1,125 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

258records on file
100Energy Star

Completed in 1904, 521 Bergen Ave rises 6 stories over Bronx. Public records put it at 3 units and 52,114 square feet of floor area, on land zoned C4-4. It is carried on the public rolls at a market value of $7.8M, and assessed for tax at $3.5M. In the 43 years its record reaches back, the lot has drawn 258 separate government filings.

The documentary life of the address leans hard toward permit: 78 of its 258 records, fully 30%, fall under that one heading. Enforcement (57) and violation (50) 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 2021.

On the environmental ledger, the building posts an Energy Star score of 100, with a site energy-use intensity of 7.0 kBtu per square foot. Its operations answer for roughly 42 metric tons of CO2-equivalent a year.

Read together — 30% permit, 43 years of accumulation, a parcel of Bronx — these scattered records compose a portrait of the address that no single page sets out to draw.

$7.8M of Bronx, written across 258 government filings.

Property Details

Address521 BERGEN AVE, Bronx, NY 10455
Building TypeOffice - Non-Combustible
O5
Year Built1904
Floors6
Total Units3
Building Area52,114 sqft
Lot Size7,450 sqft
ZoningC4-4
2022930023
2000530
OwnershipCompany-owned

Assessment & Sales

$7.8M
$3.5M
$168K
$11.8M
Last Sale DateAug 14, 2019

Building Permits

78 on record · 40 active
General ConstructionDOB NOW
APPROVED
Filed May 4, 2026Est. cost $90KJob #X01333019-P1
General ConstructionDOB NOW
PERMIT ENTIRE
Filed May 4, 2026Est. cost $90KJob #X01333019-S2
General ConstructionDOB NOW
PERMIT ENTIRE
Filed Mar 5, 2026Est. cost $150KJob #X01293620-S2
General ConstructionDOB NOW
APPROVED
Filed Mar 5, 2026Est. cost $150KJob #X01293620-P1
ElectricalDOB NOW
PERMIT ISSUED
Filed Mar 3, 2026Job #X01366954-I1-EL

Children Rescue Fund: 3rd and 4th Floors

View this permit's full record & inspection history →

+ 73 more permitsview full report

Violations

50 on record · none currently open
Open judgment balance — docketed OATH judgments$1,125
Judgments · 13 docketed
Sanitation summons (OATH)JUDGMENT DOCKETED
Docketed May 31, 2025Balance $75Ticket #048492599Z
IMPROPER DISPOSAL - 1ST OFFENSE
Sanitation summons (OATH)JUDGMENT DOCKETED
Docketed Jun 30, 2025Balance $75Ticket #048569003L
IMPROPER DISPOSAL - 1ST OFFENSE
Sanitation summons (OATH)JUDGMENT DOCKETED
Docketed May 31, 2025Balance $75Ticket #048656715P
IMPROPER DISPOSAL - 1ST OFFENSE
Sanitation summons (OATH)JUDGMENT DOCKETED
Docketed May 31, 2025Balance $75Ticket #048656716R
IMPROPER DISPOSAL - 1ST OFFENSE
FDNY summons (OATH)JUDGMENT DOCKETED
Docketed Nov 30, 2023Balance $825Ticket #014067468H
FIRE PROTECTION SYSTEMS

+ 8 more docketed judgmentsview full report

DOB LegacyEARCX
DISMISSED
Issued Jun 23, 2024#2755675

FAILURE TO SUBMIT AN EER PER AD. CODE SEC. 28-308.4 IN 2023

View this violation's full details & status history →
DOB LegacyEnergy Benchmarking
DISMISSED
Issued May 2, 2024#2752959

FAILURE TO FILE BENCHMARKING REPORT OF ENERGY USE AS PER AD. CODE SEC. 28-309.4

View this violation's full details & status history →
DOB LegacyEGRADE
DISMISSED
Issued Dec 1, 2021#2559831

FAILURE TO DISPLAY ENERGY EFFICIENCY SCORE AND ENERGY EFFICIENCY GRADE AS PER ADCODE SEC. 28-309.12.3

View this violation's full details & status history →
DOB LegacyEnergy Benchmarking
DISMISSED
Issued Nov 2, 2021#2562646

FAILURE TO FILE BENCHMARKING REPORT OF ENERGY USE AS PER AD. CODE SEC. 28-309.4

View this violation's full details & status history →
DOB LegacyEnergy Benchmarking
DISMISSED
Issued Aug 2, 2021#2544654

FAILURE TO FILE BENCHMARKING REPORT OF ENERGY USE AS PER AD. CODE SEC. 28-309.4

View this violation's full details & status history →

+ 45 more violations on record — view full report

Get the Complete Report for 521 BERGEN 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 BERGEN AVE, Bronx built?

The building at 521 BERGEN AVE, Bronx, NY 10455 was constructed in 1904. It is classified as a office - non-combustible with 6 floors and 3 units. The building area is 52,114 sqft.

Are there building permits at 521 BERGEN AVE, Bronx?

Yes. 521 BERGEN AVE, Bronx, NY 10455 has 78 building permits on record, with 40 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 (APPROVED) filed May 4, 2026.

Does 521 BERGEN AVE, Bronx have violations?

Yes. 521 BERGEN AVE, Bronx, NY 10455 has 50 violations on record, with 0 currently open. Breakdown: 35 DOB, 15 ECB. Sources: NYC DOB, HPD, and ECB/OATH.

Does 521 BERGEN AVE, Bronx have docketed judgments?

Yes. 521 BERGEN AVE, Bronx, NY 10455 has 13 docketed judgments on record with the NYC Office of Administrative Trials & Hearings (OATH), with an open balance of $1,125. 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 BERGEN AVE?

521 BERGEN AVE, Bronx, NY 10455 has an assessed market value of $7.8M and a total assessed value of $3.5M (land: $168K). Assessment data is from the NYC Department of Finance (DOF).

When was 521 BERGEN AVE last sold?

521 BERGEN AVE, Bronx, NY 10455 last sold for $11.8M on Aug 14, 2019. Sale records are sourced from NYC ACRIS and Department of Finance rolling sales data.

What is the zoning for 521 BERGEN AVE?

521 BERGEN AVE, Bronx, NY 10455 is zoned C4-4. 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 BERGEN AVE?

521 BERGEN AVE, Bronx, NY 10455 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 BERGEN AVE?

Search 521 BERGEN 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 BERGEN AVE, Bronx, NY 10455 — Property Records, Permits, Violations, Tax & Zoning | RegWatch