640 WEST END AVENUE is a prewar 1913 building, 12 floors, 59 units in Upper West Side, NYC. Owned by 640 WEST END AVE CONDOMINIUM. Public records show 61 open violations, 39 311 complaints, 4 active litigation matters on file.
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Manhattan · March 2026
Best & worst months to sign a lease
Potential savings: ~7% by timing your move to March.
Asking rent per bedroom type — switch tabs to see each with effective (concession-net) rent.
Monthly counts over the last 7 years · all data sources
§ 27-2045 ADM CODE REPAIR OR REPLACE THE SMOKE DETECTOR MISSING IN THE ENTIRE APARTMENT LOCATED AT APT 12D, 12th STORY, 1st APARTMENT FROM WEST AT NORTH
§ 27-2005, 2007 HMC: REMOVE THE ILLEGAL DOUBLE CYLINDER KEY OPERATED LOCKING DEVICE AT DOOR .. IN THE ENTRANCE LOCATED AT APT 12D, 12th STORY, 1st APARTMENT FROM WEST AT NORTH
§ 27-2046.1 HMC: REPAIR OR REPLACE THE CARBON MONOXIDE DETECTING DEVICE(S). MISSING IN THE ENTIRE APARTMENT LOCATED AT APT 12D, 12th STORY, 1st APARTMENT FROM WEST AT NORTH
§ 27-2005 ADM CODE PROPERLY REPAIR THE BROKEN OR DEFECTIVE SPRING BALANCE AT LOWER WINDOW SASH AT NORTH IN THE KITCHEN LOCATED AT APT 12D, 12th STORY, 1st APARTMENT FROM WEST AT NORTH
§ 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE WOOD EXTERIOR SILL AT NORTH WINDOW IN THE KITCHEN LOCATED AT APT 12D, 12th STORY, 1st APARTMENT FROM WEST AT NORTH
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 stretch of the Upper West Side flanking the American Museum of Natural History is quintessential family Manhattan — stroller-packed sidewalks, the best bagels in the city (Absolute Bagels, H&H), and Riverside Park steps away.
Noise - Street/Sidewalk — Loud Music/Party
Illegal Parking — Blocked Hydrant
HEAT/HOT WATER — APARTMENT ONLY
PLUMBING — TOILET
PLUMBING — BATHTUB/SHOWER
Derelict Vehicles
Illegal Parking — Blocked Crosswalk
Lead — Lead Kit Request (Residential) (L10)
Lead — Lead Kit Request (Residential) (L10)
ELECTRIC — OUTLET/SWITCH