866 WEST END AVENUE is a prewar 1899 building, 10 units in Upper West Side, NYC. Owned by 866-8 DEVELOPMENT CORP. Public records show 27 open violations, 64 311 complaints on file.
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Manhattan · March 2026
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Potential savings: ~9% by timing your move to February.
Monthly counts over the last 7 years · all data sources
§ 27-2029 ADM CODE PROVIDE AN ADEQUATE SUPPLY OF HEAT FOR THE APARTMENT LOCATED AT B-ROOM 2B, 1st STORY, 1st B-ROOM FROM NORTH AT EAST
§ 27-2029 ADM CODE PROVIDE AN ADEQUATE SUPPLY OF HEAT FOR THE APARTMENT LOCATED AT B-ROOM 3A, 2nd STORY, 1st B-ROOM FROM WEST AT NORTH
§27-2045(B)(5) HMC, § 12-06, 12-10 RCNY POST A PROPER NOTICE OF CARBON MONOXIDE DETECTING DEVICE REQUIREMENTS, IN A FORM APPROVED BY COMMISSIONER, IN A COMMON AREA OF A CLASS A MULTIPLE DWELLING NEAR INSPECTION CERTIFICATE OR PROVIDE NOTICE TO TENANTS IN PRIVATE DWELLINGS MISSING
§ 27-2045(B)(1)(A) HMC, § 12-01, § 12-03 RCNY REPAIR, REPLACE OR PROVIDE AN APPROVED AND OPERATIONAL SMOKE DETECTING DEVICE, INSTALLED IN ACCORDANCE WITH DEPARTMENT OF BUILDINGS RULES AND REGULATIONS MISSING LOCATED AT B-ROOM 2B, 1st STORY, 1st B-ROOM FROM NORTH AT EAST
(A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPDS WEBSITE, WWW.NYC.GOV\HPD, SEARCH BED BUGS.
Portfolio-level grade reflects the landlord's buildings across NYC, weighted by unit count. Individual building grades may differ.
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ACRIS deeds and regulatory filings
The northern Upper West Side around 100th to 110th streets is where Columbia University's influence begins to creep in. Morningside Park, cheaper rents than the 70s and 80s, and a diverse mix of academics, families, and longtime residents give it an easygoing, unpretentious energy.
HEAT/HOT WATER — APARTMENT ONLY
HEAT/HOT WATER — APARTMENT ONLY
HPD Class C Violation — § 27-2029 ADM CODE PROVIDE AN ADEQUATE SUPPLY OF HEAT FOR THE APARTMENT LOCATED AT B-ROOM 2B, 1st STORY, 1st B-ROOM FROM
HPD Class C Violation — § 27-2029 ADM CODE PROVIDE AN ADEQUATE SUPPLY OF HEAT FOR THE APARTMENT LOCATED AT B-ROOM 3A, 2nd STORY, 1st B-ROOM FROM
HPD Class A Violation — §27-2045(B)(5) HMC, § 12-06, 12-10 RCNY POST A PROPER NOTICE OF CARBON MONOXIDE DETECTING DEVICE REQUIREMENTS, IN A FORM
HPD Class B Violation — § 27-2045(B)(1)(A) HMC, § 12-01, § 12-03 RCNY REPAIR, REPLACE OR PROVIDE AN APPROVED AND OPERATIONAL SMOKE DETECTING DEV
HEAT/HOT WATER — ENTIRE BUILDING
HEAT/HOT WATER — ENTIRE BUILDING
HEAT/HOT WATER — ENTIRE BUILDING
HEAT/HOT WATER — ENTIRE BUILDING