How well maintained is this building?

There are 23 open HPD violations on record, including 8 Class C (the city's most serious category).

Is this building rent-stabilized?

Yes — this building appears on the DHCR rent-stabilized building list. Ask the landlord to confirm whether a specific apartment is stabilized.

How noisy is this building?

Neighbors filed 1 noise complaint with 311 in the past year, about the neighborhood median of 1.

How responsive is management to problems?

Resolved violations at this building closed in about 89 days on average (NYC average is roughly 45 days). Open items are listed in the Safety & Violations section above.

What does it cost to live here?

We don't have current listings for this building. Typical asking rent in Borough Park is about $3,088/month for a one-bedroom.

4101 9th Avenue

Borough Park·Brooklyn

🔴7 Pest Alerts

⚪Pre-War

Scroll for details

Violation & building data

Violation data updated Jul 1

Sources: NYC Department of Buildings, NYC Housing Preservation & Development +1 more

Building overview

Area Avg$3,0881-bed neighbourhood

Value—needs listing data

Violations8 critical

BuildingWalk-up

Data as of Jul 1, 2026

Building Quality

How is this calculated?

0.0/ 10Significant Issues

Based on open violations, 311 complaint patterns, and amenities.

Unit Value

How is this calculated?

Limited data — verify with a tour.

Compared to typical rent for this neighborhood and bedroom count.

Highlights

What's great about this place

Pre-war character
Built in 1929

Things to Know

Real considerations before you sign

Open critical violations
8 Class C (immediately hazardous)
Significant issues across building data
See violation history below for details

How we pick these

Neighbourhood mapOpen in Google Maps

About this building

A 4-story building located in Sunset Park (East)-Borough Park (West), containing 46 residential units. Built in 1929.

Neighborhood

Borough Park →

The neighborhood: Borough Park

Brooklyn · 18,994 buildings tracked

Median asking rent: $3,088 1BR · $3,233 2BR

6thAvBeachCulverEndSeaWest

9 subway stations nearby

5 parks · 0.8 acres · incl. Brizzi Playground

Full Borough Park guide

Available Units

0 active

No past listings.

Past and off-market units will appear here when data is available.

Safety & Violations

Safety Record

Active Violations

Open HPD violations on record for this building.

Top issues

Pests7
Structural5
Safety4

Severity Key

Class C: Immediately Hazardous (Major)
Class B: Hazardous (Moderate)
Class A: Non-Hazardous (Minor)

Show Critical Only (Class C)

Safety
THE MISSING OR REPAIR/REPLACE THE DEFECTIVE WINDOW GUARD(S) IN ACCORDANCE WITH THE SPECIFICATIONS OF THE NEW YORK CITY HEALTH CODE SECTION 24 RCNY CHAPTER 12. WG TO INSTALL = 3; WG TO REPLACE = 0; WG TO REPAIR = 1; LOCATED AT APT B7, 2nd STORY, 2nd APARTMENT FROM NORTH AT EAST
Nov 19, 2025Class C
Safety
THE MISSING OR REPAIR/REPLACE THE DEFECTIVE WINDOW GUARD(S) IN ACCORDANCE WITH THE SPECIFICATIONS OF THE NEW YORK CITY HEALTH CODE SECTION 24 RCNY CHAPTER 12. WG TO INSTALL = 2; WG TO REPLACE = 0; WG TO REPAIR = 0; IN THE ENTIRE APARTMENT LOCATED AT APT D1, 4th STORY, 1st APARTMENT FROM SOUTH AT WEST
Nov 19, 2025Class C
Window/Door
THE BROKEN OR DEFECTIVE LOCK AT VESTIBULE DOOR , 1st STORY
Nov 19, 2025Class C
Safety
THE MISSING OR REPAIR/REPLACE THE DEFECTIVE WINDOW GUARD(S) IN ACCORDANCE WITH THE SPECIFICATIONS OF THE NEW YORK CITY HEALTH CODE SECTION 24 RCNY CHAPTER 12. WG TO INSTALL = 0; WG TO REPLACE = 0; WG TO REPAIR = 5; IN THE ENTIRE APARTMENT LOCATED AT APT D1, 4th STORY, 1st APARTMENT FROM SOUTH AT WEST , SECTION AT NORTH
Nov 19, 2025Class C
Pests
ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT B7, 2nd STORY, 2nd APARTMENT FROM NORTH AT EAST , SECTION AT SOUTH
Sep 3, 2024Class C

Market Value Estimate

Statistical estimate based on publicly available listing data. Not an appraisal. See disclaimer.Market data as of Jul 1, 2026.

Comp Matrix

Unit Type	This Bldg	Area Avg	Diff.
1 Bed	—	$3,088	—
2 Bed	—	$3,232.5	—

Value Verdict

Insufficient listing or market data to compute a verdict for this building.

Rent vs. Buy Analysis

No listing data available to estimate rent vs. buy.

Management & Operations

Management & Performance

Owner/Operator

902 REALTY ASSOCIATES LLC

Responsiveness Score

89days

Average time to resolve violations

Slower than NYC average (45 days)

We haven't verified this building's policies yet. Pet, utility, and leasing details appear here once we've reviewed the management company's official site — we only show policies we can source, never assumptions.

Living here — quick answers

Every answer comes from public records for this specific building — we skip questions we can't answer with data.

How well maintained is this building?: There are 23 open HPD violations on record, including 8 Class C (the city's most serious category).
Is this building rent-stabilized?: Yes — this building appears on the DHCR rent-stabilized building list. Ask the landlord to confirm whether a specific apartment is stabilized.
How noisy is this building?: Neighbors filed 1 noise complaint with 311 in the past year, about the neighborhood median of 1.
How responsive is management to problems?: Resolved violations at this building closed in about 89 days on average (NYC average is roughly 45 days). Open items are listed in the Safety & Violations section above.
What does it cost to live here?: We don't have current listings for this building. Typical asking rent in Borough Park is about $3,088/month for a one-bedroom.

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