How well maintained is this building?

There are 20 open HPD violations on record, including 3 Class C (the city's most serious category). That's higher than typical for the neighborhood (1 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 4 noise complaints with 311 in the past year, above the neighborhood median of 1 among buildings with any noise complaints.

How responsive is management to problems?

Resolved violations at this building closed in about 235 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 Prospect Heights is about $4,550/month for a one-bedroom.

217 Underhill Avenue

Prospect Heights·Brooklyn

🔴1 Pest Alert

⚪Pre-War

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Violation & building data

Violation data updated Jul 1

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

Building overview

Area Avg$4,5501-bed neighbourhood

Value—needs listing data

Violations3 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 1920

Things to Know

Real considerations before you sign

Open critical violations
3 Class C (immediately hazardous)
Top complaint type at this building
4 heat complaints in past year
Higher noise than typical for the neighborhood
4 noise complaints in past year (vs 1 median)

How we pick these

Neighbourhood mapOpen in Google Maps

About this building

A 5-story building located in Prospect Heights, containing 32 residential units. Built in 1920.

Neighborhood

Prospect Heights →

The neighborhood: Prospect Heights

Brooklyn · 1,484 buildings tracked

Median asking rent: $4,550 1BR · $6,448 2BR

EasternPky

1 subway station nearby

2 parks · 0.7 acres · incl. James Forten Playground

Full Prospect Heights 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

Higher than typical for this neighborhood (20 vs 1 average per building).

Top issues

Safety7
Mold3
Water/Plumbing3

Severity Key

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

Show Critical Only (Class C)

Water/Plumbing
OR REPLACE THE BROKEN OR DEFECTIVE CRACK IN THE RADIATOR LEAKING WATER IN THE 2nd ROOM FROM EAST LOCATED AT APT 1A3A, 1st STORY, 1st APARTMENT FROM NORTH AT EAST
Feb 24, 2026Class C
Heat/Hot Water
READY ACCESS TO BUILDINGS HEATING SYSTEM DOCK LOCKED NO ACCESS IN THE 3rd ROOM FROM EAST AT SOUTH LOCATED AT APT B5, 2nd STORY, 2nd APARTMENT FROM NORTH AT EAST
Nov 24, 2023Class C
Pests
ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT C7, 3rd STORY, 1st APARTMENT FROM EAST AT SOUTH
Oct 19, 2021Class C
Mold
THE SOURCE AND ABATE THE VISIBLE MOLD CONDITION... LESS THAN 10 SQ FT AT THE CEILING IN THE 1st BATHROOM FROM EAST LOCATED AT APT 1A, 1st STORY, 1st APARTMENT FROM NORTH AT EAST ORIGINAL VIOLATION 18287837 ISSUED 09-OCT-25 HAS BEEN UPGRADED TO CLASS B PER ADMINISTRATIVE CODE 27-2017.3a(3)(a) or (b).
Feb 9, 2026Class B
Mold
THE SOURCE AND ABATE THE VISIBLE MOLD CONDITION... LESS THAN 10 SQ.FT AT WEST WALL BELOW KITCHEN SINK IN THE KITCHEN LOCATED AT APT 5D, 4th STORY, 2nd APARTMENT FROM NORTH AT EAST , SECTION ''EAST '' ORIGINAL VIOLATION 18133417 ISSUED 04-AUG-25 HAS BEEN UPGRADED TO CLASS B PER ADMINISTRATIVE CODE 27-2017.3a(3)(a) or (b).
Dec 3, 2025Class B

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	—	$3,837.5	—
1 Bed	—	$4,550	—
2 Bed	—	$6,447.5	—
3+ Bed	—	$7,950	—

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

JS 326 LLC

Responsiveness Score

235days

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 20 open HPD violations on record, including 3 Class C (the city's most serious category). That's higher than typical for the neighborhood (1 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 4 noise complaints with 311 in the past year, above the neighborhood median of 1 among buildings with any noise complaints.
How responsive is management to problems?: Resolved violations at this building closed in about 235 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 Prospect Heights is about $4,550/month for a one-bedroom.

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