526 West 123rd Street, Manhattan

    Sixteen open code violations and persistent heat issues hang over this 10-unit building.

    For a 10-unit Morningside Heights walk-up, the open violation citation count is heavy. 11 of the 16 open citations fall into Class C—the immediately hazardous category covering unaddressed hot water outages, defective self-closing doors, and mold. Three things to know:

    Repeated hot water violations across multiple apartments. Inspectors cited the building repeatedly for missing hot water or temperatures exceeding the 130-degree legal cap. Building logs show 45 heat and hot water complaints, including entire-building outages during the winter season.

    Active Class C mold violations cited on two different floors. Inspectors cited an active Class C mold condition covering over 10 square feet on a ceiling and wall in Apartment 2E. That follows another mold citation in 5W, pointing to ongoing water leaks traveling down the building line.

    Quieter signals on this building and the blocks around it:

    526 West 123rd Street is a 10-unit building in Manhattan, New York City (BBL 1019770045). This building is associated with 123rd Street Investor, LLC. Brix tracks 11 open HPD violations for this property, along with inspection history, DOB filings, tenant complaints, and rent stabilization status.

    Built in 1926, 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 154 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 July 16, 2026.

    Conditions cited on open violations at this address:

    The building last changed hands on May 5, 2025, according to recorded deeds.

    Brix score: 11/100. View the Building Report on Brix.

    See every NYC building owned by 123rd Street Investor, LLC on the landlord portfolio page.

    Part of Harlem — see violations, complaints, and landlord activity across the whole neighborhood.

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    Apartments at 526 West 123rd Street

    • Unit 2E

      Unit 2E at 526 West 123rd Street has 4 open violations.

    • Unit 5-E

      Unit 5-E at 526 West 123rd Street has 2 open violations.

    • Unit 1E

      Unit 1E at 526 West 123rd Street has 1 open violation, 1 permit filed ($8K, latest 2007).

    • Unit 2W

      Unit 2W at 526 West 123rd Street has 1 open violation.

    • Unit 4E

      Unit 4E at 526 West 123rd Street has no open violations (1 past violation), 1 permit filed ($7K, latest 2007).

    • Unit 1W

      Unit 1W at 526 West 123rd Street has no violations, 2 permits filed ($19K, latest 2007).

    • Unit 5W

      Unit 5W at 526 West 123rd Street has no open violations (8 past violations).

    • Unit 3W

      Unit 3W at 526 West 123rd Street has no open violations (2 past violations).

    • Unit 4-W

      Unit 4-W at 526 West 123rd Street has no open violations (1 past violation).

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