132 open HPD violations at this address, 26 of them class C — the immediately hazardous tier — on a 25-unit walk-up apartment building in Brooklyn.
307 12th Street is a 25-unit building in Brooklyn, New York City (BBL 3010230069). This building is associated with 307 12 St LLC. Brix tracks 132 open HPD violations for this property, along with inspection history, DOB filings, tenant complaints, and rent stabilization status.
Built in 1912, 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 341 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 October 9, 2026.
Conditions cited on open violations at this address:
The building last changed hands on March 31, 2026 for $3,070,785.56, according to recorded deeds.
Brix score: 5/100. View the Building Report on Brix.
See every NYC building owned by 307 12 St LLC on the landlord portfolio page.
Part of Park Slope — see violations, complaints, and landlord activity across the whole neighborhood.
Other buildings in 11215:
Browse every NYC neighborhood or the landlord directory on Brix.
Unit 19 at 307 12th Street has 22 open violations.
Unit 18 at 307 12th Street has 17 open violations.
Unit 1 at 307 12th Street has 15 open violations.
Unit 11 at 307 12th Street has 12 open violations.
Unit 7 at 307 12th Street has 11 open violations.
Unit 5 at 307 12th Street has 9 open violations.
Unit 16 at 307 12th Street has 9 open violations.
Unit 20 at 307 12th Street has 6 open violations.
Unit 17 at 307 12th Street has 6 open violations.
Unit 21 at 307 12th Street has 5 open violations.
Unit 6 at 307 12th Street has 5 open violations.
Unit 3 at 307 12th Street has 5 open violations.
Unit 15 at 307 12th Street has 3 open violations.
Unit 4 at 307 12th Street has 2 open violations.
Unit 2 at 307 12th Street has 1 open violation.
Unit 8 at 307 12th Street has 1 open violation.
Unit 23 at 307 12th Street has 1 open violation.
Unit 25 at 307 12th Street has no violations, last sold in 2014 for $208M.
Unit 24 at 307 12th Street has no open violations (1 past violation).
Unit 14 at 307 12th Street has no open violations (23 past violations).
Unit 13 at 307 12th Street has no open violations (7 past violations).
Unit 12 at 307 12th Street has no open violations (124 past violations).
Unit 9 at 307 12th Street has no open violations (17 past violations).
Own or manage this building? Monitor it or correct the record.