523 West 173rd Street
523 West 173rd Street in Washington Heights, Manhattan, has 15 open HPD violations, 5 of them class C, and 8 of 8 units are rent-stabilized, as of Oct 26, 2026. StreetSpy grade: F (30/100).
Multi-family elevator · 8 units · Built 2015
StreetSpy grade: F (Severe, 30/100)
- 5 immediately hazardous violations open (the class that covers no heat, pests, lead paint and similar).
- 2 open violations are classified rent-impairing under NY Multiple Dwelling Law section 302-a.
- 13 housing complaints to 311 in the last 12 months.
- 8 of 8 units are rent-stabilized.
More open violations per unit than 7 in 10 Manhattan buildings this size.
- Repairs: High (15 open, 5 class C), records as of Oct 26, 2026
- Heat and hot water: 1 complaint, 12 mo, records as of Oct 25, 2026
- Pests: Clear (Owner reported none, 3 yr), records as of Oct 28, 2026
- Safety: Clear (No open DOB violations), records as of Oct 26, 2026
- Registration: Renewal not yet in city data, records as of Oct 3, 2026
Housing code violations (HPD)
15 open violations: 5 class C (immediately hazardous), 3 class B, 7 class A. 9 issued in the last 12 months. 44 on record. Oldest open violation issued 2017-06-26. Newest violation issued 2026-08-20.
0 closed in the last 90 days. Median 85 days from issue to close for the 22 violations closed in the last 12 months.
2 open violations are classified rent-impairing under NY Multiple Dwelling Law section 302-a. Section 302-a; NY Courts guidance on getting repairs.
- Class C: No heat / heating defect (basement). PROVIDE READY ACCESS TO BUILDINGS HEATING SYSTEM LOCKED DOOR AT BASEMENT AT BOILER ROOM, issued 2026-02-11. HPD violation 18632312
- Class C: No heat / heating defect, throughout the apartment, 2nd floor. PROVIDE AN ADEQUATE SUPPLY OF HEAT FOR THE APARTMENT IN THE ENTIRE APARTMENT LOCATED AT APT 2R, 2nd STORY, 1st APARTMENT FROM WEST AT NORTH (apt 2R), issued 2026-02-11. HPD violation 18632311
- Class C: No heat / heating defect (hallway). POST NOTICE, IN FORM APPROVED BY THE DEPARTMENT, STATING THE NAME AND LOCATION OF THE PERSON DESIGNATED BY THE OWNER TO HAVE KEY TO BUILDINGS HEATING SYSTEM MISSING AT PUBLIC HALL, 1st STORY, issued 2025-08-20. HPD violation 18168362
- Class C: Gas defect, kitchen, 2nd floor. PROVIDE AN ADEQUATE SUPPLY OF GAS TO THE FIXTURES AT GAS RANGE IN THE KITCHEN LOCATED AT APT 2F, 2nd STORY, 1st APARTMENT FROM EAST AT SOUTH (apt 2F), issued 2017-06-26. HPD violation 11844975
- Class C: No heat / heating defect (hallway). POST NOTICE, IN FORM APPROVED BY THE DEPARTMENT, STATING THE NAME AND LOCATION OF THE PERSON DESIGNATED BY THE OWNER TO HAVE KEY TO BUILDINGS HEATING SYSTEM - MISSING AT PUBLIC HALL, 1st STORY, issued 2017-06-26. HPD violation 11844982
- Class B: Mold, west wall. HMC: TRACE AND REPAIR THE SOURCE AND ABATE THE VISIBLE MOLD CONDITION... MORE THAN 10 SQUARE FEET AT WEST WALL AT BASEMENT ORIGINAL VIOLATION 18168357 ISSUED 18-AUG-25 HAS BEEN UPGRADED TO CLASS B PER ADMINISTRATIVE CODE 27-2017.3a(3)(a) or (b)., issued 2025-12-18. HPD violation 18521554
- Class B: Mold, ceiling. HMC: TRACE AND REPAIR THE SOURCE AND ABATE THE VISIBLE MOLD CONDITION... LESS THAN 10 SQUARE FEET AT CEILING AT BASEMENT ORIGINAL VIOLATION 18168356 ISSUED 18-AUG-25 HAS BEEN UPGRADED TO CLASS B PER ADMINISTRATIVE CODE 27-2017.3a(3)(a) or (b)., issued 2025-12-18. HPD violation 18521553
- Class B: Mold, ceiling, bathroom, 1st floor. HMC: TRACE AND REPAIR THE SOURCE AND ABATE THE VISIBLE MOLD CONDITION... LESS THAN 10 SQUARE FT AT CEILING IN THE BATHROOM LOCATED AT APT 1F, 1st STORY, 1st APARTMENT FROM WEST AT NORTH (apt 1F), issued 2025-08-25. HPD violation 18181718
311 housing complaints
13 in the last 12 months, 28 in 5 years. Most common: Unsanitary Condition (7), Water Leak (3), Door/Window (2), Heat/Hot Water (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: 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
1 executed evictions in the last 3 years (1 on record). 0 open HPD cases; 0 harassment findings.
Rent stabilization
8 of 8 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).
Owner and management
Owner: W 173 GROUP LLC. Head officer: MAURICE KOHAN. Managing agent: W 173 GROUP LLC. This owner has 32 buildings on record, 11 graded D or F. See the full portfolio.
Last HPD registration Jul 10, 2025. Registration on file through Sep 1, 2026; renewal not yet in the city's data.
Tax lot and city IDs
BBL 1021300057, HPD building ID 969461. HPD Online, ACRIS, DOB BIS.
Nearest subway
- 168 St (A, C), 6 min walk
- 168 St-Washington Hts (1), 6 min walk
- 175 St (A), 7 min walk
How the grade is calculated
| Factor | On record | Points |
|---|---|---|
| Open HPD violations | 15 open (5 class C, 3 class B, 7 class A). 2 rent-impairing | −40 |
| 311 housing complaints (12 mo) | 13 | −20 |
| Bedbug reports (3 yr) | None reported | 0 |
| Executed evictions (3 yr) | 1 | −10 |
| 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 2026-10-28.