666 Saint Nicholas Avenue
Class B
Class C
12 months to Aug 2026
rent-stabilized with
DHCR (most recent year)
units (PLUTO)
12 months through March 2026
rent
min walk
(311 complaints)
errands grade
nearby
Top insights
- More open HPD violations than ~91% of buildings in this ZIP (80 open)
- 27 open hazardous (Class C) violations
- More HPD complaints than the neighborhood average (25 vs ~9)
- Built before 1939 (city records: 1915) — likely subject to NYC lead-paint rules
- Rent-stabilized: 47 of 50 units
About this building
The building’s floor space is 4.3 times the size of its lot: 42,516 sq ft of building on a 10,000 sq ft lot. 50 apartments — more than 93% of the 709 residential buildings we cover in ZIP 10030 have.
Comparisons with neighboring buildings, as of November 10, 2026.
A difference between the DHCR rent-stabilized count and the PLUTO total is common and does not, on its own, indicate a violation: units can leave rent stabilization legally, the two datasets count units differently, some units may be non-residential, and a registration can be filed incompletely. To check your own apartment, see how to request your rent history from DHCR.
666 Saint Nicholas Avenue
Open in Google Street View ↗
- City records show 80 open HPD violations, 27 immediately hazardous (Class C) under 666 St Nicholas Avenue — the address HPD files this building’s records under, not the address on this page. Ask which are still unresolved in the unit and the landlord’s timeline to clear them.
- The oldest open violation on record dates to 2017 — why has it stayed open this long, and is it in or near this unit?
- DHCR’s most recent registration lists 47 rent-stabilized units here. Ask whether this specific unit is one of them, and ask the landlord for its legal regulated rent and lease history.
- Confirm the condition behind the most recent open violation was actually repaired, not just marked closed: Replace or repair the self-closing doors that is missing or defective latch set at east 1….
- Confirm in person that the immediately-hazardous (Class C) conditions — typically heat, hot water, leaks, mold or pests — are genuinely fixed, not just marked closed.
666 Saint Nicholas Avenue sits in Manhattan, ZIP 10030. The closest subway is 145 St (A,C,B,D) (3-minute walk), served by the A, B, C, and D lines.
Building Condition
Oldest open violation: June 2017 · Most recent: October 2026. HPD marks a violation open until it is certified as corrected, so an old date can mean an unresolved condition or a repair that was never certified.
- 2026-10-24
- 2026-10-24
- 2026-10-24
- 2026-10-24
- 2026-10-24
- 2026-10-24
- 2026-10-13
- 2026-03-23
- 2026-03-23
- 2026-03-23
- Class C · 27 open · penalty 405 · (15/ea)
- Class B · 43 open · penalty 215 · (5/ea)
- Class A · 10 open · penalty 10 · (1/ea)
- 2026-05-22 · Apt 37 · EMERGENCY · UNSANITARY CONDITION
- 2026-05-22 · Apt 37 · NON EMERGENCY · WATER LEAK
- 2026-05-22 · Apt 37 · NON EMERGENCY · PAINT/PLASTER
- 2025-12-11
- 2024-06-18
- 2017-08-09 "FAILURE TO CERTIFY CORRECTION ON IMMEDIATELY HAZARDOUS (CLASS 1) ECB VIOLATION"
- 2017-08-09 "FAILURE TO CERTIFY CORRECTION ON IMMEDIATELY HAZARDOUS (CLASS 1) ECB VIOLATION"
- 2017-08-09 "FAILURE TO CERTIFY CORRECTION ON IMMEDIATELY HAZARDOUS (CLASS 1) ECB VIOLATION"
2 open lead-paint hazard violations on record (most recent 2025). These are HPD violations recorded against the building — not a test of any specific apartment.
27 earlier hazards cited and remediated.
Under NYC Local Law 1 (Admin Code §27-2056.5), lead paint is presumed present in common areas and in apartments where a child under 6 resides, in multiple dwellings built before 1960 (this building: built 1915). The presumption stands unless the owner obtained a lead-free or lead-safe exemption from HPD. Those exemption records aren’t published as open data, so we can’t confirm one either way.
Also on record: 11 procedural §27-2056 violations (failure to file required lead paperwork, most recent 2025) — a records failure, not evidence of a lead hazard.
The Building
Neighborhood & Environment
~1 block 300m
~2-3 blocks
- HARRASSMENT 2: 175
- PETIT LARCENY: 138
- ASSAULT 3 & RELATED OFFENSES: 98
- GRAND LARCENY: 68
- OTHER OFFENSES RELATED TO THEFT: 52
- HEAT/HOT WATER: 449
- Illegal Parking: 215
- Noise - Residential: 126
- UNSANITARY CONDITION: 109
- PLUMBING: 76
- 673 SAINT NICHOLAS AVE
- 356 W 145TH ST
- 330 WEST 145 STREET
- Neighborhood Charter School of Harlem
- P.S. 123 Mahalia Jackson
- P.S. 194 Countee Cullen
- Neighborhood Charter School of Harlem
- P.S. 123 Mahalia Jackson
- Eagle Academy for Young Men of Harlem
- Eagle Academy for Young Men of Harlem
- Mott Hall High School
- New Heights Academy Charter School
- 145 St
- 135 St
- 145 St
- Grade A
- Grade A
- Grade A
- Grade A
- Grade A
- Grade A
- Grade A
- Grade A
- Harlem Village Academy North Charter School
- Frank White Memorial Garden
- Jackie Robinson Park
- Success Academy Charter School - Harlem 5
- Firelight Media, Inc.
- Hamilton Grange Library
Internet providers serving this area
Internet providers available in this area — including fiber:
- Verizon Fiber Up to 2,300 Mbps down · 2,300 Mbps up
- Astound Broadband Cable Up to 1,500 Mbps down · 50 Mbps up
- Spectrum Cable Up to 1,000 Mbps down · 1,000 Mbps up
How to check internet providers before signing an NYC lease →
Source: FCC Broadband Data Collection (NY, rev. May 2026). Wired broadband only — cable + fiber. DSL, satellite, and fixed-wireless not included. Block-level data; actual availability may vary by building.
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