How well maintained is this building?

There are 244 open HPD violations on record, including 36 Class C (the city's most serious category). That's higher than typical for the neighborhood (2 average per building).

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 5 noise complaints with 311 in the past year, above the neighborhood median of 2 among buildings with any noise complaints.

How responsive is management to problems?

Resolved violations at this building closed in about 116 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 Flatbush is about $3,243/month for a one-bedroom.

230 East 21st Street

Flatbush·Brooklyn

🔴5 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$3,2431-bed neighbourhood

Value—needs listing data

Violations36 critical

BuildingElevator

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 1926

Things to Know

Real considerations before you sign

Open critical violations
36 Class C (immediately hazardous)
Top complaint type at this building
5 noise complaints in past year
Higher noise than typical for the neighborhood
5 noise complaints in past year (vs 2 median)

How we pick these

Neighbourhood mapOpen in Google Maps

About this building

A 6-story building located in Flatbush, containing 63 residential units. Built in 1926.

Neighborhood

Flatbush →

The neighborhood: Flatbush

Brooklyn · 6,057 buildings tracked

Median asking rent: $3,261 1BR · $3,600 2BR

BrightonBroadway

5 subway stations nearby

5 parks · 1.3 acres · incl. Flatbush African Burial Ground

Full Flatbush guide

Available Units

0 active

No past listings.

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

Safety & Violations

Safety Record

244

Active Violations

Higher than typical for this neighborhood (244 vs 2 average per building).

Top issues

Structural71
Water/Plumbing61
Safety36

Severity Key

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

Show Critical Only (Class C)

Pests
ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT 1F, 1st STORY, 2nd APARTMENT FROM EAST AT SOUTH
Mar 25, 2026Class C
Pests
ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT 1F, 1st STORY, 2nd APARTMENT FROM EAST AT SOUTH
Mar 24, 2026Class C
Mold
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 EXCRETA OBSERVED AT INSPECTION IN THE ENTIRE APARTMENT LOCATED AT APT 1F, 1st STORY, 2nd APARTMENT FROM EAST AT SOUTH
Mar 24, 2026Class C
Window/Door
OR REPLACE THE BROKEN OR DEFECTIVE MORTISE LOCK AT DOOR IN THE ENTRANCE LOCATED AT APT 1H, 1st STORY, 3rd APARTMENT FROM WEST AT NORTH
Jan 28, 2026Class C
Pests
ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT 1K, 1st STORY, 1st APARTMENT FROM EAST AT SOUTH
Jan 26, 2026Class 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.
Studio	—	$2,964	—
1 Bed	—	$3,243	—
2 Bed	—	$3,500	—
3+ Bed	—	$3,500	—

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

575 OCEAN AVE CORP

Responsiveness Score

116days

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 244 open HPD violations on record, including 36 Class C (the city's most serious category). That's higher than typical for the neighborhood (2 average per building).
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 5 noise complaints with 311 in the past year, above the neighborhood median of 2 among buildings with any noise complaints.
How responsive is management to problems?: Resolved violations at this building closed in about 116 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 Flatbush is about $3,243/month for a one-bedroom.

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