How well maintained is this building?

There are 225 open HPD violations on record, including 55 Class C (the city's most serious category). That's higher than typical for the neighborhood (6 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 9 noise complaints with 311 in the past year, above the neighborhood median of 3 among buildings with any noise complaints.

How responsive is management to problems?

Resolved violations at this building closed in about 595 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 Hamilton Heights is about $2,775/month for a one-bedroom.

621 West 144th Street

Hamilton Heights·Manhattan

🔴2 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$2,7751-bed neighbourhood

Value—needs listing data

Violations55 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
55 Class C (immediately hazardous)
Top complaint type at this building
50 heat complaints in past year
Higher noise than typical for the neighborhood
9 noise complaints in past year (vs 3 median)

How we pick these

Neighbourhood mapOpen in Google Maps

About this building

A 6-story building located in Hamilton Heights-Sugar Hill, containing 59 residential units. Built in 1926.

Neighborhood

Hamilton Heights →

The neighborhood: Hamilton Heights

Manhattan · 1,559 buildings tracked

Median asking rent: $2,775 1BR · $4,075 2BR

7Av8thAvBroadwayFultonSt

3 subway stations nearby

8 parks · 2.4 acres · incl. Alexander Hamilton Playground

Full Hamilton 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

225

Active Violations

Higher than typical for this neighborhood (225 vs 6 average per building).

Top issues

Structural49
Water/Plumbing42
Lead Paint28

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 = 2; WG TO REPLACE = 0; WG TO REPAIR = 1; IN THE ENTIRE APARTMENT LOCATED AT APT 4A, 4th STORY, 2nd APARTMENT FROM WEST AT NORTH
Jun 26, 2026Class C
Safety
ADM CODE REMOVE DEVICE PREVENTING DOOR FROM BEING SELF-CLOSING WEATHER STRIP AT DOOR IN THE ENTRANCE LOCATED AT APT 4A, 4th STORY, 2nd APARTMENT FROM WEST AT NORTH
Jun 26, 2026Class C
Window/Door
OR REPLACE THE BROKEN OR DEFECTIVE COUNTER-BALANCES AT LOWER SASH AT WINDOW AT EAST WALL IN THE KITCHEN LOCATED AT APT 4A, 4th STORY, 2nd APARTMENT FROM WEST AT NORTH
Jun 26, 2026Class C
Safety
C) MDL AND 28 RCNY §25-171: REPLACE OR REPAIR THE SELF-CLOSING DOORS THAT IS MISSING OR DEFECTIVE HINGES AT 2ND EGRESS DOOR IN THE 1st ROOM FROM NORTH LOCATED AT APT 4A, 4th STORY, 2nd APARTMENT FROM WEST AT NORTH
Jun 26, 2026Class C
Safety
C) MDL AND 28 RCNY §25-171: REPLACE OR REPAIR THE SELF-CLOSING DOORS THAT IS MISSING OR DEFECTIVE DOOR AND FRAME AT BUILDING ENTRANCE DOOR AT PUBLIC HALL, 1st STORY
Jun 24, 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	—	$3,050	—
1 Bed	—	$2,775	—
2 Bed	—	$4,075	—
3+ Bed	—	$4,975	—

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

670 RIVER REALTY CORP

Responsiveness Score

595days

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 225 open HPD violations on record, including 55 Class C (the city's most serious category). That's higher than typical for the neighborhood (6 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 9 noise complaints with 311 in the past year, above the neighborhood median of 3 among buildings with any noise complaints.
How responsive is management to problems?: Resolved violations at this building closed in about 595 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 Hamilton Heights is about $2,775/month for a one-bedroom.

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