City inspectors were last at this 3-unit walk-up apartment building on May 6, 2026, and the resulting violation remains open.
21 St Marks Place is a 3-unit building in Brooklyn, New York City (BBL 3003890062). This building is associated with 21 Saint Marks Group LLC. Brix tracks 11 open HPD violations for this property, along with inspection history, DOB filings, tenant complaints, and rent stabilization status.
Built in 1899, 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 73 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 January 17, 2024.
Conditions cited on open violations at this address:
The building last changed hands on October 24, 2025 for $2,400,000, according to recorded deeds.
Brix score: 34/100. View the Building Report on Brix.
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Part of Park Slope — see violations, complaints, and landlord activity across the whole neighborhood.
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Unit 2 at 21 St Marks Place has 3 open violations.
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