527 West 121st Street
527 West 121st Street in Morningside Heights, Manhattan, has 12 open HPD violations, and 21 of 24 units are rent-stabilized, as of Oct 25, 2026. StreetSpy grade: B (82/100).
Multi-family elevator · 24 units · Built 1926
StreetSpy grade: B (Good, 82/100)
- 12 open housing violations, none in the most serious class.
- The head officer on this registration is named on 141 buildings' registrations; 10 graded D or F.
- No housing complaints to 311 in the last 12 months.
- 21 of 24 units are rent-stabilized; 3 on the 2007 tax bill.
- Repairs: Medium (12 open), records as of Oct 25, 2026
- Heat and hot water: No complaints, 12 mo, records as of Oct 25, 2026
- Pests: Clear (Owner reported none, 3 yr), records as of Oct 27, 2026
- Safety: Clear (No open DOB violations), records as of Oct 23, 2026
- Registration: Renewal not yet in city data, records as of Oct 3, 2026
Housing code violations (HPD)
12 open violations: 0 class C (immediately hazardous), 9 class B, 3 class A. 0 issued in the last 12 months. 15 on record. Oldest open violation issued 1991-04-16. Newest violation issued 2024-04-01. No new HPD violation has been issued here since 2024. Most of the open count is older violations that were never closed.
HPD recorded no violation closed here in the last 12 months.
- Class B: Broken window or sash, 3rd room from the east, 6th floor. PROPERLY REPAIR THE BROKEN OR DEFECTIVE GLASS PANE IN LOWER WINDOW SASH IN THE 3rd ROOM FROM EAST AT SOUTH LOCATED AT APT 63, 6th STORY, 1st APARTMENT FROM EAST AT SOUTH (apt 63), issued 2017-10-13. HPD violation 12014286
- Class B: Damaged plaster or paint, ceiling, foyer, 6th floor. REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR AT CEILING IN THE FOYER LOCATED AT APT 63, 6th STORY, 1st APARTMENT FROM EAST AT SOUTH (apt 63), issued 2017-10-13. HPD violation 12014181
- Class B: Floor or stair defect, kitchen, 6th floor. PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE VINYL FLOOR TILES IN THE KITCHEN LOCATED AT APT 63, 6th STORY (apt 63), issued 2017-10-13. HPD violation 12014196
- Class B: Damaged plaster or paint, throughout the apartment, 6th floor. REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR THE CEILINGS AND ALL WALLS THROUGH OUT IN THE ENTIRE APARTMENT LOCATED AT APT 63, 6th STORY, 1st APARTMENT FROM EAST AT SOUTH (apt 63), issued 2017-10-13. HPD violation 12014267
- Class B: Self-closing door not working (entrance). D26-10.01, 10.05 ADM CODE ARRANGE AND MAKE SELF-CLOSING THE DOORS ENTRANCE TO 6TH STY NORTHEAST APT 61. LOCATED AT APT 61 (apt 61), issued 2008-06-25. HPD violation 3046862
- Class B: Self-closing door not working (entrance). D26-10.01, 10.05 ADM CODE ARRANGE AND MAKE SELF-CLOSING THE DOORS ENTRANCE 2ND STY NORTHEAST APT 21. LOCATED AT APT 21 (apt 21), issued 2008-06-25. HPD violation 3046865
- Class B: Self-closing door not working (entrance). D26-10.01, 10.05 ADM CODE ARRANGE AND MAKE SELF-CLOSING THE DOORS ENTRANCE 5TH STY SOUTHWEST APT 54. , SECTION '' '' (apt 54), issued 2008-06-25. HPD violation 3046864
- Class B: Roaches. ABATE THE NUISANCE CONSISTING OF VERMIN ROACHES THRU OUT 2 STY NORTHEAST APT 21 , SECTION '' '' (apt 21), issued 1997-11-03. HPD violation 3046870
311 housing complaints
0 in the last 12 months, 0 in 5 years.
Bedbugs
The owner reported 0 infested units in the last 3 years of filings. HPD's bedbug filings are self-reported by the owner once a year; HPD does not inspect to confirm them.
- 2026: No bedbug filing on record for this year
- 2025: Owner reported 0 infested units
- 2024: Owner reported 0 infested units
- 2023: No bedbug filing on record for this year
- 2022: Owner reported 0 infested units
- 2021: No bedbug filing on record for this year
Buildings department (DOB)
No open DOB violations. 0 DOB violations on record. Check on DOB BIS.
Evictions and housing court
0 executed evictions in the last 3 years (0 on record). 0 open HPD cases; 0 harassment findings.
Rent stabilization
21 of 24 units rent-stabilized as of 2024. Stabilized renewals: 0% for one year and 0% for two years under RGB Order #58 (Oct 1, 2026 to Sep 30, 2027).
Rent-stabilized units on city tax bills: 21 in 2024, 3 in 2007. Source: DOF tax bills for 2007 and 2024; years with no bill on file are left out.
Owner and management
Owner: TRUSTEES OF COLUMBIA UNIVERSITY. Head officer: DAVID GREENBERG. Managing agent: DIEGO RIVERA. This owner has 141 buildings on record, 10 graded D or F. See the full portfolio.
Last HPD registration Oct 23, 2025. Registration on file through Sep 1, 2026; renewal not yet in the city's data.
Tax lot and city IDs
BBL 1019760010, HPD building ID 39065. HPD Online, ACRIS, DOB BIS.
Nearest subway
- 116 St-Columbia University (1), 6 min walk
- 125 St (1), 7 min walk
- 125 St (A, C, B, D), 8 min walk
How the grade is calculated
| Factor | On record | Points |
|---|---|---|
| Open HPD violations | 12 open (9 class B, 3 class A) | −18 |
| 311 housing complaints (12 mo) | None | 0 |
| Bedbug reports (3 yr) | None reported | 0 |
| Executed evictions (3 yr) | None | 0 |
| Housing litigation | No open cases | 0 |
| Open DOB violations | None | 0 |
Sources: NYC HPD Housing Maintenance Code Violations, NYC 311 Service Requests, NYC HPD Bedbug Reporting, NYC Marshal Evictions (DOI), NYC HPD Housing Litigations, NYC DOB Violations, NYC DOF tax bills (via JustFix Who Owns What portfolio API, v2), NYC HPD Property Registration. Methodology. Report generated 2026-10-27.