433 West 21st Street
433 West 21st Street in Chelsea, Manhattan, has 40 open HPD violations, 5 of them class C, and 23 of 69 units are rent-stabilized, as of Oct 25, 2026. StreetSpy grade: C (65/100).
Multi-family elevator · 69 units · Built 1930
StreetSpy grade: C (Fair, 65/100)
- 5 immediately hazardous violations open (the class that covers no heat, pests, lead paint and similar).
- 15 housing complaints to 311 in the last 12 months.
- The head officer on this registration is named on 39 buildings' registrations; 1 graded D or F.
- 23 of 69 units are rent-stabilized; 40 on the 2007 tax bill.
More open violations per unit than 8 in 10 Manhattan buildings this size.
- Repairs: Medium (40 open, 5 class C), 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)
40 open violations: 5 class C (immediately hazardous), 26 class B, 9 class A. 48 issued in the last 12 months. 100 on record. Oldest open violation issued 2019-06-03. Newest violation issued 2026-08-10.
0 closed in the last 90 days. Median 2,056 days from issue to close for the 53 violations closed in the last 12 months.
- Class C: Roaches (basement). HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF ROACHES AT CELLAR, issued 2026-03-23. HPD violation 18726351
- Class C: Damaged plaster or paint, ceiling, 8th floor. REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR AT CEILING IN THE PRIVATE HALLWAY LOCATED AT APT 9A, 8th STORY, 2nd APARTMENT FROM NORTH AT EAST (apt 9A), issued 2026-03-20. HPD violation 18722198
- Class C: Damaged plaster or paint, ceiling, 5th floor. REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR THE CEILING IN THE PRIVATE HALLWAY LOCATED AT APT 6A, 5th STORY, 2nd APARTMENT FROM NORTH AT EAST (apt 6A), issued 2026-03-20. HPD violation 18722190
- Class C: Mice, throughout the apartment, 12th floor. HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 12A, 12th STORY, 1st APARTMENT FROM NORTH AT EAST (apt 12A), issued 2019-10-21. HPD violation 13321524
- Class C: Mice, throughout the apartment, 12th floor. HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 12A, 12th STORY, 2nd APARTMENT FROM NORTH AT EAST (apt 12A), issued 2019-06-03. HPD violation 13101038
- Class B: Floor or stair defect (hallway). PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE VINYL FLOOR TILES AT PUBLIC HALL, 2nd STORY, issued 2026-06-01. HPD violation 18964795
- Class B: Electrical defect, outlet on the east wall, 4th room from the east, 9th floor. HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE ELECTRICAL OUTLET AT EAST WALL IN THE 4th ROOM FROM EAST LOCATED AT APT 9A, 9th STORY, 2nd APARTMENT FROM NORTH AT EAST (apt 9A), issued 2026-05-27. HPD violation 18956633
- Class B: Damaged plaster or paint, 4th room from the east, 9th floor. REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR THE NORTH WALL AND CEILING IN THE 4th ROOM FROM EAST LOCATED AT APT 9A, 9th STORY, 2nd APARTMENT FROM NORTH AT EAST (apt 9A), issued 2026-05-27. HPD violation 18956632
311 housing complaints
15 in the last 12 months, 48 in 5 years. Most common: Unsanitary Condition (5), Paint/Plaster (3), Water Leak (3), Plumbing (2), Door/Window (1).
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: Owner reported 0 infested units
- 2022: Owner reported 0 infested units
- 2021: Owner reported 0 infested units
Buildings department (DOB)
No open DOB violations. 4 DOB violations on record. Check on DOB BIS.
Evictions and housing court
0 executed evictions in the last 3 years (2 on record). 0 open HPD cases; 0 harassment findings.
Rent stabilization
23 of 69 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: 23 in 2024, 40 in 2007. Source: DOF tax bills for 2007 and 2024; years with no bill on file are left out.
Owner and management
Owner: 433 WEST ASSOCIATES, LCC. Head officer: RICHARD F MASON. Managing agent: URBAN ASSOCIATES LLC. This owner has 39 buildings on record, 1 graded D or F. See the full portfolio.
Last HPD registration Oct 7, 2025. Registration on file through Sep 1, 2026; renewal not yet in the city's data.
Tax lot and city IDs
BBL 1007190020, HPD building ID 31171. HPD Online, ACRIS, DOB BIS.
Nearest subway
- 23 St (C, E), 6 min walk
- 14 St (A, C, E), 7 min walk
- 8 Av (L), 9 min walk
How the grade is calculated
| Factor | On record | Points |
|---|---|---|
| Open HPD violations | 40 open (5 class C, 26 class B, 9 class A) | −27 |
| 311 housing complaints (12 mo) | 15 | −8 |
| 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.