300 21st Street, Brooklyn

    City inspectors were last at this 3-unit walk-up apartment building on May 11, 2026, and the resulting violation remains open.

    300 21st Street is a 3-unit building in Brooklyn, New York City (BBL 3008980009). This building is associated with 300 21st Street, LLC. Brix tracks 8 open HPD violations for this property, along with inspection history, DOB filings, tenant complaints, and rent stabilization status.

    Built in 2005, this walk-up apartment building sits in Brooklyn and is tracked by Brix using public NYC records from HPD, DOB, ACRIS, and 311.

    Tenants have filed 1 HPD complaint 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 January 7, 2025.

    Conditions cited on open violations at this address:

    The building last changed hands on November 21, 2008, according to recorded deeds.

    Brix rating: Concerning (38/100). View the Building Report on Brix.

    See every NYC building owned by 300 21st Street, LLC on the landlord portfolio page.

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

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