306 Union Avenue

Brooklyn, NY

BBL 3-02791-0001BIN 3069651

Concern level2 of 4

Moderate

011 active DOB violation(s)
029 open HPD violation(s)

How this is set: open hazardous violations measured against the building's size, then raised by strong distress signals — HPD's enforcement program, court harassment findings, recent evictions, unpaid DOB fines, open housing-court cases, and a sold tax lien. Neighborhood noise and crime are not part of it. It describes the public record, not the condition of any one apartment, and a quiet record is not proof of a good building.

Rent regulation

Likely rent-stabilized

The owner registered 21 stabilized units with New York State for 2023 — essentially all of the building's 21 apartments.

2018 — 21 units registered2023 — 21

No public data says which specific apartment is stabilized.

Registration counts apply to the building, not to unit numbers. To confirm your own apartment, request your rent history from New York State Homes and Community Renewal — it is free and takes a few weeks.

How to request your rent history →

Rent regulation

The building

1920

Built

Floors

Residential units

Walk-up apartments

Type

The building

This building and the landlord's others

This building92 others linked to the same owner

HPD housing-maintenance violations

Open now

177

On record

Open Class C

Open Class B

Open Class A

Class C is immediately hazardous, Class B is hazardous, Class A is non-hazardous. A violation stays open until HPD certifies the repair, so some open items may already be fixed.

CLASS B · HAZARDOUSIssued 2026-08-31

§ 27-2005, 2007 ADM CODE AND DEPT. RULES AND REGULATIONS. REMOVE THE ENCUMBRANCE OBSTRUCTING EGRESS FROM FIRE ESCAPES FLOWER POTS AT BALCONY AT NORTH 2 FIRE ESCAPE AT WEST , 5th STORY

Status: Nov Certified On Time

CLASS B · HAZARDOUSApt 3AIssued 2026-06-05

§ 27-2045(B)(1)(B) HMC, § 12-06, § 12-07, § 12-09 RCNY REPAIR, REPLACE OR PROVIDE AN APPROVED AND OPERATIONAL CARBON MONOXIDE DETECTING DEVICE, INSTALLED IN ACCORDANCE WITH APPLICABLE LAW AND RULES MISSING IN THE ENTIRE APARTMENT LOCATED AT APT 3A, 3rd STORY, 2nd APARTMENT FROM NORTH AT EAST

Status: Notice issued, not yet certified

CLASS B · HAZARDOUSApt 3AIssued 2026-06-05

§ 27-2045(B)(1)(A) HMC, § 12-01, § 12-03 RCNY REPAIR, REPLACE OR PROVIDE AN APPROVED AND OPERATIONAL SMOKE DETECTING DEVICE, INSTALLED IN ACCORDANCE WITH DEPARTMENT OF BUILDINGS RULES AND REGULATIONS MISSING IN THE ENTIRE APARTMENT LOCATED AT APT 3A, 3rd STORY, 2nd APARTMENT FROM NORTH AT EAST

Status: Notice issued, not yet certified

CLASS B · HAZARDOUSApt 6AIssued 2026-05-29

§ 27-2045(B)(1)(A) HMC, § 12-01, § 12-03 RCNY REPAIR, REPLACE OR PROVIDE AN APPROVED AND OPERATIONAL SMOKE DETECTING DEVICE, INSTALLED IN ACCORDANCE WITH DEPARTMENT OF BUILDINGS RULES AND REGULATIONS DEFECTIVE IN THE ENTIRE APARTMENT LOCATED AT APT 6A, 6th STORY, 2nd APARTMENT FROM NORTH AT EAST

Status: Notice issued, not yet certified

HPD housing-maintenance violations

311 complaints from tenants

All time

Last 12 months

Heat/Hot Water33

Unsanitary Condition6

Electric5

Door/Window2

General2

Paint/Plaster2

Plumbing1

Water Leak1

Complaints record what a tenant reported, not a finding by the city. "Closed" often means the inspector could not gain access.

311 complaints from tenants

Neighborhood noise

Much higher than averagevs. NYC apartment blocks

1756

Noise reports · last 12 mo

146

≈ per month

% from neighbors

Residential636

Street/Sidewalk530

Commercial400

Unspecified108

Vehicle75

House of Worship4

Park3

311 noise complaints within about 1,000 ft (a few blocks) in the last year. Most reports here are about outdoor noise (mostly residential) — street life and traffic more than neighbors. This counts how often people call 311, which tracks how densely populated and busy an area is as much as how loud it is — it is not a sound measurement.

Neighborhood noise

Neighborhood crime

Higher than averagevs. NYC apartment blocks

280

NYPD reports · last 12 mo

≈ per month

Felony106

Misdemeanor127

Violation47

NYPD complaints reported within about 1,000 ft (a few blocks) in the last year, by severity. This reflects what gets reported and where police are active as much as actual safety, and busier, denser, higher-foot-traffic blocks log more. Locations are approximate — the NYPD shifts each report to the nearest corner for privacy — so read this as rough context, not a safety score.

Neighborhood crime

Bedbug history

No bedbugs reported

The owner filed 7 annual bedbug reports and reported no infested units. Filing with zero infestations is the compliant, reassuring case.

Bedbug history

DOB building violations

Active

On record

Active, last 3 yrs

ACTIVE · C-CONSTRUCTION OTHER OPTIONAL2025-09-02

I OBSERVED IN THE ENTIRE APARTMENT 2C DAMAGE DUE TO FIRE. LIGHT FIXTURE DEVICES, WIRING AND ELECTRICAL EQUIPMENT FIRE DAMAGE.

DOB building violations

Evictions

No executed evictions on record for this building.

Evictions

Housing court

Cases on record

Open now

Tenant-brought

Harassment found

With a judgment

Most cases are tenants taking the owner to court to force repairs. A case is not proof of wrongdoing; a harassment finding or judgment is a court ruling against the owner.

CLOSEDOpened 2019-02-13

Tenant action

CLOSEDOpened 2011-08-31

Tenant action

CLOSEDOpened 2011-07-27

Tenant action

CLOSEDOpened 2011-06-21

Tenant action

Housing court

Landlord and related buildings

Registered owner

BROOKLYN NEIGHBORHOOD HDFC

Head officer

FRANK LANG

Managing agent

ST NICKS ALLIANCE

93 other buildings share this owner's registration contacts. Shared contacts suggest common control, but they are not proof of ownership.

106 GERRY STREETBROOKLYN 108 MESEROLE STREETBROOKLYN 110 MESEROLE STREETBROOKLYN 110 SEIGEL STREETBROOKLYN 111 PUTNAM AVENUEBROOKLYN

Landlord and related buildings

Unpaid city fines

Balance due (active)

Active violations

Lost by default

DOB violations adjudicated by OATH carry money penalties. "Lost by default" means the owner never appeared at the hearing. An unpaid balance is a stronger "ignoring the city" signal than a raw violation count.

UnknownClass 22025-09-02$800 penalty

Unpaid city fines

Ownership & money

Recorded sales

Mortgages / refinances

Last recorded sale2007-11-21 · no recorded price

Most recent mortgage1989-04-28 · $1,740,891

Sale2007-11-21no recorded price

UNION COURT DEVELOPMENT CORPORTION → BROOKLYN NEIGHBORHOOD HOUSING DEVELOPMENT FUND

Mortgage1989-04-28$1,740,891

borrower UNION COURT LTD PRTNRSHP · lender NYC HPD

Sale1989-02-23no recorded price

306/UNI/AVE/HSG/DLVP/FD/ → UNION COURT LTD PARTNERS

Mortgage1988-05-17$1,740,891

borrower 306 UNION AVE HSNG DVLPT · lender NYC HPD

Sale1988-01-22no recorded price

CITY OF NEW YORK → 306 UNION AVE HSNG DVLP

From ACRIS recorded documents. Amounts are often $0 or nominal for transfers between related parties, and LLCs can obscure who is really involved — treat this as public-record context, not a valuation.

Ownership & money

City debt & tax-lien sale

Not on the city's tax-lien sale list (2019–2025). The owner has not fallen far enough behind on property tax or water charges to be flagged for a lien sale.

City debt & tax-lien sale