509 WEST 121 STREET is a prewar 1911 building, 8 floors, 110 units in Harlem, NYC. Owned by TEACHERS COLLEGE COLUMBIA UNIVERITY. Public records show 1 open violation on file.
Drop this scorecard into a tenant guide, blog post, or wiki. It updates itself as new violations are filed.
Manhattan · March 2026
Best & worst months to sign a lease
Potential savings: ~8% by timing your move to November.
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
(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.
View full landlord profileTop 5 by score · of 14 total
ACRIS deeds and regulatory filings
West Harlem around 125th Street is the neighborhood's commercial and cultural spine — the Apollo Theater, Studio Museum, and a corridor of new development coexist with decades-old barbershops and West African restaurants. Columbia's Manhattanville campus expansion is reshaping the western edge.
General Construction/Plumbing — Sidewalk Shed/Pipe Scafford - Inadequate Defective/None
HEAT/HOT WATER — ENTIRE BUILDING
HEAT/HOT WATER — ENTIRE BUILDING
Noise - Residential — Banging/Pounding
Noise - Residential — Banging/Pounding
HEAT/HOT WATER — ENTIRE BUILDING
Illegal Parking — Double Parked Blocking Traffic
Illegal Parking — Double Parked Blocking Traffic
Illegal Parking — Double Parked Blocking Vehicle
HPD Class A Violation — (A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR