City inspectors were last at this 20-unit walk-up apartment building on June 16, 2026, and the resulting violation remains open.
312 12th Street is a 20-unit building in Brooklyn, New York City (BBL 3010290020). This building is associated with 310 12th St Associates LLC. Brix tracks 4 open HPD violations for this property, along with inspection history, DOB filings, tenant complaints, and rent stabilization status.
Built in 1914, 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 90 HPD complaints about this building over the last five years, most often about unsanitary condition.
The DOB has logged 1 permit filing on this building in the last 24 months.
What tenants have called the city about here over the last five years:
The most recent complaint on this building was filed September 10, 2026.
Conditions cited on open violations at this address:
The building last changed hands on July 27, 2026 for $4,400,000, according to recorded deeds.
Brix score: 33/100. View the Building Report on Brix.
See every NYC building owned by 310 12th St Associates LLC on the landlord portfolio page.
Part of Park Slope — see violations, complaints, and landlord activity across the whole neighborhood.
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Unit 16 at 312 12th Street has 3 open violations, 1 permit filed ($45K, latest 2016).
Unit 15 at 312 12th Street has no open violations (3 past violations), 2 permits filed ($408K, latest 2026).
Unit 10 at 312 12th Street has no open violations (2 past violations), 1 permit filed ($333K, latest 2022).
Unit 08 at 312 12th Street has no violations, 1 permit filed ($71K, latest 2021).
Unit 12A at 312 12th Street has no violations, 1 permit filed ($139K, latest 2020).
Unit 12 at 312 12th Street has no open violations (13 past violations), 2 permits filed ($230K, latest 2020).
Unit 19 at 312 12th Street has no violations, 1 permit filed ($85K, latest 2020).
Unit 17 at 312 12th Street has no open violations (6 past violations), 1 permit filed ($45K, latest 2016).
Unit 20 at 312 12th Street has no open violations (1 past violation).
Unit 18 at 312 12th Street has no open violations (6 past violations).
Unit 14 at 312 12th Street has no open violations (11 past violations).
Unit 11 at 312 12th Street has no open violations (11 past violations).
Unit 8 at 312 12th Street has no open violations (4 past violations).
Unit 7 at 312 12th Street has no open violations (2 past violations).
Unit 6 at 312 12th Street has no open violations (4 past violations).
Unit 5 at 312 12th Street has no open violations (1 past violation).
Unit 4 at 312 12th Street has no open violations (5 past violations).
Unit 3 at 312 12th Street has no open violations (1 past violation).
Unit 2 at 312 12th Street has no open violations (68 past violations).
Unit 1 at 312 12th Street has no open violations (10 past violations).
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