634 St Nicholas Avenue

634 St Nicholas Avenue in Hamilton Heights, Manhattan, has 13 open HPD violations, 4 of them class C, and 60 of 60 units are rent-stabilized, as of Oct 25, 2026. StreetSpy grade: C (68/100).

Multi-family elevator · 60 units · Built 1930

StreetSpy grade: C (Fair, 68/100)

• 4 immediately hazardous violations open (the class that covers no heat, pests, lead paint and similar).
• 1 open violation is classified rent-impairing under NY Multiple Dwelling Law section 302-a.
• 13 heat or hot water complaints to 311 in the last 12 months.
• 60 of 60 units are rent-stabilized; 57 on the 2007 tax bill.

More open violations per unit than 7 in 10 Manhattan buildings this size.

• Repairs: Low (13 open, 4 class C), records as of Oct 25, 2026
• Heat and hot water: 13 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

How the grade works

Housing code violations (HPD)

13 open violations: 4 class C (immediately hazardous), 7 class B, 2 class A. 7 issued in the last 12 months. 146 on record. Oldest open violation issued 2014-09-16. Newest violation issued 2026-02-05.

2 closed in the last 90 days. Median 84 days from issue to close for the 10 violations closed in the last 12 months.

1 open violation is classified rent-impairing under NY Multiple Dwelling Law section 302-a. Section 302-a; NY Courts guidance on getting repairs.

• Class C: Roaches, throughout the apartment, 2nd floor. HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT 2F, 2nd STORY, 1st APARTMENT FROM SOUTH AT WEST (apt 2F), issued 2026-02-02. HPD violation 18607930
• Class C: Roaches, throughout the apartment, 2nd floor. HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT 2K, 2nd STORY, 6th APARTMENT FROM SOUTH AT WEST (apt 2K), issued 2026-02-02. HPD violation 18607928
• Class C: Self-closing door not working, 2nd floor. , 2007 ADM CODE REMOVE DEVICE PREVENTING DOOR FROM BEING SELF-CLOSING DOOR SWEEP AT BOTTOM OF DOOR IN THE ENTRANCE LOCATED AT APT 2H, 2nd STORY, 2nd APARTMENT FROM SOUTH AT WEST (apt 2H), issued 2024-09-03. HPD violation 17232250
• Class C: Broken window or sash, 1st room from the east, 6th floor. HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE 1ST UPPER WINDOW GLASS PANE FROM NORTH AT EAST IN THE 1st ROOM FROM EAST AT NORTH LOCATED AT APT 6A, 6th STORY, 1st APARTMENT FROM NORTH AT EAST (apt 6A), issued 2024-04-03. HPD violation 16787691
• Class B: Leak or water damage, bathroom, 6th floor. REPAIR THE LEAKY AND/OR DEFECTIVE WATER SUPPLY PIPE COLD WATER SUPPLY LINE AT WASHBASIN IN THE BATHROOM LOCATED AT APT 6A, 6th STORY, 1st APARTMENT FROM NORTH AT EAST (apt 6A), issued 2024-04-03. HPD violation 16787694
• Class B: Damaged plaster or paint, kitchen, 2nd floor. REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR PLASTER AND PAINT CEILING IN THE KITCHEN LOCATED AT APT 2A, 2nd STORY, 1st APARTMENT FROM NORTH AT EAST (apt 2A), issued 2023-06-05. HPD violation 16014129
• Class B: Damaged plaster or paint, 2nd room from the north, 2nd floor. PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE CEILING IN THE 2nd ROOM FROM NORTH LOCATED AT APT 2A, 2nd STORY, 1st APARTMENT FROM NORTH AT EAST (apt 2A), issued 2023-06-05. HPD violation 16014130
• Class B: Plumbing defect, kitchen, 2nd floor. PROPERLY REPAIR THE BROKEN OR DEFECTIVE BASE CABINET AT SINK IN THE KITCHEN LOCATED AT APT 2K, 2nd STORY, 1st APARTMENT FROM WEST AT NORTH (apt 2K), issued 2023-02-27. HPD violation 15741936

311 housing complaints

21 in the last 12 months, 68 in 5 years. Most common: Heat/Hot Water (13), Unsanitary Condition (3), Water Leak (3), Plumbing (2).

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 2 infested, 2 treated, 0 re-infested

Buildings department (DOB)

No open DOB violations. 5 DOB violations on record. Check on DOB BIS.

Evictions and housing court

1 executed evictions in the last 3 years (2 on record). 0 open HPD cases; 0 harassment findings.

Rent stabilization

60 of 60 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: 60 in 2024, 57 in 2007. Source: DOF tax bills for 2007 and 2024; years with no bill on file are left out.

Owner and management

Owner: 634 NICK PARTNERS LP. Head officer: MARK SCHARFMAN. Managing agent: MARK SCHARFMAN. This owner has 134 buildings on record, 49 graded D or F. See the full portfolio.

Last HPD registration Sep 4, 2025. Registration on file through Sep 1, 2026; renewal not yet in the city's data.

Tax lot and city IDs

BBL 1020510020, HPD building ID 28155. HPD Online, ACRIS, DOB BIS.

Nearest subway

• 145 St (B, D), 4 min walk
• 135 St (C, B), 6 min walk
• 145 St (1), 8 min walk

How the grade is calculated

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.