509 West 121st Street
Building overview
Data as of Jul 1, 2026
Based on open violations, 311 complaint patterns, and amenities.
Compared to typical rent for this neighborhood and bedroom count.
Highlights
What's great about this place
- Pre-war characterBuilt in 1911
Things to Know
Real considerations before you sign
- Open critical violations5 Class C (immediately hazardous)
- Significant issues across building dataSee violation history below for details
About this building
A 8-story building located in Morningside Heights, containing 110 residential units. Built in 1911.
The neighborhood: Morningside Heights
Manhattan · 449 buildings tracked
Median asking rent: $5,509 1BR · $5,999 2BR
2 subway stations nearby
2 parks · 0.3 acres · incl. Old Croton Aqueduct Gatehouse
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 (5 vs 2 average per building).
Top issues
- Lead Paint5
Severity Key
- Class C: Immediately Hazardous (Major)
- Class B: Hazardous (Moderate)
- Class A: Non-Hazardous (Minor)
- Lead Paint
CORRECT THE LEAD-BASED PAINT HAZARD - PRESUMED LEAD PAINT THAT IS PEELING OR ON A DETERIORATED SUBSURFACE ON WOOD TRIM, DOORS, OR WINDOWS - USING EXCLUSIVE INTERIM CONTROLS, WHICH INCLUDE A SURFACE DUST TEST IN ACCORDANCE WITH STATUTE. EAST DOOR FRAME, EAST WINDOW FRAME IN THE 1st ROOM FROM EAST LOCATED AT APT 605, 6th STORY, 2nd APARTMENT FROM SOUTH AT WEST
May 1, 2003Class C - Lead Paint
CORRECT THE LEAD-BASED PAINT HAZARD - PRESUMED LEAD PAINT THAT IS PEELING OR ON A DETERIORATED SUBSURFACE ON WOOD TRIM, DOORS, OR WINDOWS - USING EXCLUSIVE INTERIM CONTROLS, WHICH INCLUDE A SURFACE DUST TEST IN ACCORDANCE WITH STATUTE. EAST DOOR FRAME, EAST WINDOW FRAME IN THE 2nd ROOM FROM EAST LOCATED AT APT 605, 6th STORY, 2nd APARTMENT FROM SOUTH AT WEST
May 1, 2003Class C - Lead Paint
CORRECT THE LEAD-BASED PAINT HAZARD - PRESUMED LEAD PAINT THAT IS PEELING OR ON A DETERIORATED SUBSURFACE ON WOOD TRIM, DOORS, OR WINDOWS - USING EXCLUSIVE INTERIM CONTROLS, WHICH INCLUDE A SURFACE DUST TEST IN ACCORDANCE WITH STATUTE. EAST WINDOW FRAME IN THE KITCHEN LOCATED AT APT 605, 6th STORY, 2nd APARTMENT FROM SOUTH AT WEST
May 1, 2003Class C - Lead Paint
REMOVE OR COVER IN A MANNER APPROVED BY THE DEPARTMENT THE PEELING LEAD PAINT CLOSET DOOR PRIVATE HALL 8 STY NORTH APT 08 SOONYUN 678-3601 42850 ER1.
Oct 26, 1999Class C - Lead Paint
REMOVE OR COVER IN A MANNER APPROVED BY THE DEPARTMENT THE PEELING LEAD PAINT CEILING 8 STY NORTH APT 804 NORTHEAST ROOM 42850 ER1. LOCATED AT APT 804
Oct 26, 1999Class 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 | — | $2,600 | — |
| 1 Bed | — | $5,509 | — |
| 2 Bed | — | $5,999 | — |
| 3+ Bed | — | $4,999 | — |
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
TEACHERS COLLEGE COLUMBIA UNIVERITY
Responsiveness Score
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 5 open HPD violations on record, including 5 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 2 noise complaints with 311 in the past year, about the neighborhood median of 2.
- 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 Morningside Heights is about $5,509/month for a one-bedroom.