How well maintained is this building?

There are 13 open HPD violations on record, including 2 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 0 noise complaints with 311 in the past year — none on record for this building.

How responsive is management to problems?

Resolved violations at this building closed in about 1300 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 Melrose is about $4,000/month for a one-bedroom.

623 Courtlandt Avenue

Melrose·Bronx

🔴1 Pest Alert

⚪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$4,0001-bed neighbourhood

Value—needs listing data

Violations2 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 1931
Quieter than average for the neighborhood
0 noise complaints in past year (vs 2 median)

Things to Know

Real considerations before you sign

Open critical violations
2 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 6-story building located in Melrose, containing 23 residential units. Built in 1931.

Neighborhood

Melrose →

The neighborhood: Melrose

Bronx · 731 buildings tracked

LenoxPlainsRdWhite

1 subway station nearby

11 parks · 2.4 acres · incl. Melrose Playground

Full Melrose 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 (13 vs 2 average per building).

Top issues

Mold5
Water/Plumbing3
Safety2

Severity Key

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

Show Critical Only (Class C)

Water/Plumbing
THE BROKEN OR DEFECTIVE CONNECTION AT WASTELINE UNDER SINK IN THE KITCHEN LOCATED AT APT 6C, 6th STORY, 1st APARTMENT FROM WEST AT NORTH
Nov 29, 2024Class C
Water/Plumbing
OR REPLACE THE BROKEN OR DEFECTIVE MECHANICAL AIR VENT AT WEST WALL IN THE BATHROOM LOCATED AT APT 6C, 6th STORY, 1st APARTMENT FROM WEST AT NORTH
Nov 29, 2024Class C
Mold
THE SOURCE AND ABATE THE VISIBLE MOLD CONDITION... LESS THAN 10SQ FT AT EAST WALL (NEAR WINDOW) IN THE KITCHEN LOCATED AT APT 6C, 6th STORY, 1st APARTMENT FROM WEST AT NORTH ORIGINAL VIOLATION 18324629 ISSUED 26-OCT-25 HAS BEEN UPGRADED TO CLASS B PER ADMINISTRATIVE CODE 27-2017.3a(3)(a) or (b).
Feb 24, 2026Class B
Mold
THE SOURCE AND ABATE THE VISIBLE MOLD CONDITION... LESS THAN 10 SQ FT AROUND EAST WALL WINDOW IN THE 1st ROOM FROM EAST AT SOUTH LOCATED AT APT 6C, 6th STORY, 1st APARTMENT FROM WEST AT NORTH ORIGINAL VIOLATION 17456203 ISSUED 27-NOV-24 HAS BEEN UPGRADED TO CLASS B PER ADMINISTRATIVE CODE §27-2017.3a(3)(a) or (b).
Mar 31, 2025Class B
Mold
THE SOURCE AND ABATE THE VISIBLE MOLD CONDITION... GRADER THAN 10 SQ FEET AT CEILING, WEST, EAST, NORTH AND SOUTH WALL IN THE BATHROOM LOCATED AT APT 6C, 6th STORY, 1st APARTMENT FROM WEST AT NORTH
Jan 24, 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	—	$4,000	—

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

QUADRANT PROPERTIES HOUSING DEVELOPMENT FUND COMPA

Responsiveness Score

1300days

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 13 open HPD violations on record, including 2 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 0 noise complaints with 311 in the past year — none on record for this building.
How responsive is management to problems?: Resolved violations at this building closed in about 1300 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 Melrose is about $4,000/month for a one-bedroom.

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