City inspectors were last at this 15-unit walk-up apartment building on July 30, 2026, and the resulting violation remains open.
509 West 135th Street is a 15-unit building in Manhattan, New York City (BBL 1019880098). This building is associated with Amsterdam 135, LLC. Brix tracks 34 open HPD violations for this property, along with inspection history, DOB filings, tenant complaints, and rent stabilization status.
Built in 1910, this walk-up apartment building sits in Manhattan and is tracked by Brix using public NYC records from HPD, DOB, ACRIS, and 311.
Tenants have filed 1000 HPD complaints about this building over the last five years, most often about heat/hot water.
What tenants have called the city about here over the last five years:
The most recent complaint on this building was filed September 24, 2026.
Conditions cited on open violations at this address:
The building last changed hands on June 30, 2021 for $11,687,527.32, according to recorded deeds.
Brix score: 7/100. View the Building Report on Brix.
See every NYC building owned by Amsterdam 135, LLC on the landlord portfolio page.
Part of Hamilton Heights — see violations, complaints, and landlord activity across the whole neighborhood.
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Unit 2A at 509 West 135th Street has 14 open violations.
Unit 2C at 509 West 135th Street has 13 open violations.
Unit 5B at 509 West 135th Street has 2 open violations.
Unit 1C at 509 West 135th Street has 1 open violation.
Unit 20 at 509 West 135th Street has no violations, last sold in 2021 for $12M.
Unit 21 at 509 West 135th Street has no open violations (1 past violation).
Unit 4C at 509 West 135th Street has no open violations (1 past violation).
Unit 3B at 509 West 135th Street has no open violations (4 past violations).
Unit 2B at 509 West 135th Street has no open violations (2 past violations).
Unit 1B at 509 West 135th Street has no open violations (10 past violations).
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