Brooklyn • Walk

525 Union Ave

Brooklyn, NY 11211Company-ownedBBL 3023150014BIN 3061859
Year Built2007
Floors5
Units43
Building Area64,650 sqft
ZoningM1-2/R6
ClassC1
Market Value$12.5M

525 UNION AVE is a property located at 525 UNION AVE, Brooklyn, NY 11211. It is classified as a walk-up apartment - over six families without stores. The building was constructed in 2007. It has 5 floors and 43 units. The building area is 64,650 square feet on a 15,550 sqft lot. The property is zoned M1-2/R6. The assessed market value is $12.5M. It last sold for $38M on Mar 31, 2026. Public records list the property as company-owned. There are 60 building permits on record (44 active). There are 153 violations on record (15 currently open). 73 docketed judgments carrying $900 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

534records on file
84Energy Star

Completed in 2007, 525 Union Ave rises 5 stories over Kings. Public records put it at 43 units and 64,650 square feet of floor area, on land zoned M1-2/R6. It is carried on the public rolls at a market value of $12.5M, and assessed for tax at $5.6M. In the 35 years its record reaches back, the lot has drawn 534 separate government filings.

The documentary life of the address leans hard toward violation: 153 of its 534 records, fully 29%, fall under that one heading. Enforcement (129) and complaint (97) trail well behind. 15 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 84, with a site energy-use intensity of 33.5 kBtu per square foot. Its operations answer for roughly 215 metric tons of CO2-equivalent a year.

Read together — 29% violation, 35 years of accumulation, a parcel of Kings — these scattered records compose a portrait of the address that no single page sets out to draw.

$12.5M of Kings, written across 534 government filings.

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Executive summary, compliance history, title chain & existing debt, recorded documents & agreements, owner contacts, tax detail, Use & Development, build envelope, market comps, investment metrics, deal math & stress tests, deal signals, pre-foreclosure signals, neighborhood. Downloadable PDF. One payment, no subscription.

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Property Details

Address525 UNION AVE, Brooklyn, NY 11211
Building TypeWalk-Up Apartment - Over Six Families Without Stores
C1
Year Built2007
Floors5
Total Units43
Building Area64,650 sqft
Lot Size15,550 sqft
ZoningM1-2/R6
ConditionAverage
3023150014
3061859
OwnershipCompany-owned

Assessment & Sales

$12.5M
$5.6M
$297K
$38M
Last Sale DateMar 31, 2026

Building Permits

60 on record · 44 active
AlterationDOB Legacy
ISSUED
Filed Mar 12, 2024Job #340763515-01-03
Sidewalk ShedDOB NOW
PERMIT ISSUED
Filed Oct 3, 2023Est. cost $5KJob #B00383088-I1
General ConstructionDOB NOW
PERMIT ENTIRE
Filed Oct 3, 2023Est. cost $5KJob #B00383088-I1
Alteration — Type 3DOB Legacy
PERMIT ISSUED - ENTIRE JOB/WORK
Filed Sep 1, 2023Est. cost $6KJob #340763515-01
AlterationDOB Legacy
ISSUED
Filed Jul 5, 2023Job #340763515-01-02

+ 55 more permits — view full report

Violations

153 on record · 15 open
Open judgment balance — docketed OATH judgments$900
Judgments · 73 docketed
Sanitation summons (OATH)JUDGMENT DOCKETED
Docketed Nov 30, 2025Ticket #049090346P
STORAGE OF RECEPTACLES PLACED OUT PRIOR TO 8PM WITHOUT A RECEPTACLE
Sanitation summons (OATH)JUDGMENT DOCKETED
Docketed Oct 31, 2025Ticket #049041434Y
FAIL TO RECYCLE ORGANIC WASTE 9 OR MORE DWELLING UNITS 1ST
Sanitation summons (OATH)JUDGMENT DOCKETED
Docketed Oct 31, 2025Ticket #048960587X
IMPROPER DISPOSAL--BEDDING 1ST OCCURRENCE
Sanitation summons (OATH)JUDGMENT DOCKETED
Docketed Jun 30, 2025Ticket #048738952H
LOOSE RUBBISH 1ST OCCURRENCE
Sanitation summons (OATH)JUDGMENT DOCKETED
Docketed Nov 30, 2024Ticket #048319347N
STORAGE OF RECEPTACLES PLACED OUT PRIOR TO 8PM WITHOUT A RECEPTACLE

+ 68 more docketed judgments — view full report

SafetyElevator
ACTIVE
Issued Oct 11, 2024#VIO-FTC-VT-PER-202312-0007036

Violation Issued-Failure To File 2023 Periodic Inspection Affirmation of Correction

View this violation's full details & status history →
SafetyElevator
ACTIVE
Issued Oct 11, 2024#VIO-FTC-VT-PER-202312-0007037

Violation Issued-Failure To File 2023 Periodic Inspection Affirmation of Correction

View this violation's full details & status history →
SafetyElevator
ACTIVE
Issued Oct 23, 2023#VIO-FTC-VT-CAT1-202112-0003741

Violation Issued-Failure To File 2021 Cat1 Test Affirmation of Correction

View this violation's full details & status history →

+ 150 more violations on record — view full report

Get the Complete Report for 525 UNION 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 525 UNION AVE, Brooklyn built?

The building at 525 UNION AVE, Brooklyn, NY 11211 was constructed in 2007. It is classified as a walk-up apartment - over six families without stores with 5 floors and 43 units. The building area is 64,650 sqft.

Are there building permits at 525 UNION AVE, Brooklyn?

Yes. 525 UNION AVE, Brooklyn, NY 11211 has 60 building permits on record, with 44 currently active. Permits are sourced from the NYC Department of Buildings (DOB Legacy and DOB NOW systems). The most recent permit is a Alteration (ISSUED) filed Mar 12, 2024.

Does 525 UNION AVE, Brooklyn have violations?

Yes. 525 UNION AVE, Brooklyn, NY 11211 has 153 violations on record, with 15 currently open. Breakdown: 7 DOB Safety, 59 DOB, 43 ECB, 44 HPD. Sources: NYC DOB, HPD, and ECB/OATH.

Does 525 UNION AVE, Brooklyn have docketed judgments?

Yes. 525 UNION AVE, Brooklyn, NY 11211 has 73 docketed judgments on record with the NYC Office of Administrative Trials & Hearings (OATH), with an open balance of $900. 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 525 UNION AVE?

525 UNION AVE, Brooklyn, NY 11211 has an assessed market value of $12.5M and a total assessed value of $5.6M (land: $297K). Assessment data is from the NYC Department of Finance (DOF).

When was 525 UNION AVE last sold?

525 UNION AVE, Brooklyn, NY 11211 last sold for $38M on Mar 31, 2026. Sale records are sourced from NYC ACRIS and Department of Finance rolling sales data.

What is the zoning for 525 UNION AVE?

525 UNION AVE, Brooklyn, NY 11211 is zoned M1-2/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 525 UNION AVE?

525 UNION AVE, Brooklyn, NY 11211 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 525 UNION AVE?

Search 525 UNION 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 ($15, one-time) adds the complete title history, owner contacts, and a downloadable PDF.

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525 UNION AVE, Brooklyn, NY 11211 — Property Records, Permits, Violations, Tax & Zoning | RegWatch