74 open HPD violations at this address, 18 of them class C — the immediately hazardous tier — on a 38-unit walk-up apartment building in Brooklyn.
4123 9th Avenue is a 38-unit building in Brooklyn, New York City (BBL 3055900001). This building is associated with Congregation Yehuda And Meir Tzvi. Brix tracks 74 open HPD violations for this property, along with inspection history, DOB filings, tenant complaints, and rent stabilization status.
Built in 1916, 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 175 HPD complaints about this building over the last five years, most often about unsanitary condition.
What tenants have called the city about here over the last five years:
The most recent complaint on this building was filed October 7, 2026.
Conditions cited on open violations at this address:
The building last changed hands on December 14, 2006, according to recorded deeds.
Brix score: 0/100. View the Building Report on Brix.
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Part of Sunset Park — see violations, complaints, and landlord activity across the whole neighborhood.
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Unit B31 at 4123 9th Avenue has 20 open violations.
Unit B23 at 4123 9th Avenue has 7 open violations.
Unit B5 at 4123 9th Avenue has 6 open violations.
Unit B3 at 4123 9th Avenue has 5 open violations.
Unit B24 at 4123 9th Avenue has 3 open violations.
Unit B45 at 4123 9th Avenue has 2 open violations.
Unit B32 at 4123 9th Avenue has 2 open violations.
Unit B33 at 4123 9th Avenue has 2 open violations.
Unit A-1 at 4123 9th Avenue has 2 open violations.
Unit A24 at 4123 9th Avenue has 1 open violation.
Unit A43 at 4123 9th Avenue has 1 open violation.
Unit 44B at 4123 9th Avenue has no open violations (7 past violations).
Unit A-21 at 4123 9th Avenue has no open violations (1 past violation).
Unit A-31 at 4123 9th Avenue has no open violations (8 past violations).
Unit A2 at 4123 9th Avenue has no open violations (43 past violations).
Unit A33 at 4123 9th Avenue has no open violations (30 past violations).
Unit A34 at 4123 9th Avenue has no open violations (2 past violations).
Unit A4 at 4123 9th Avenue has no open violations (18 past violations).
Unit B2 at 4123 9th Avenue has no open violations (4 past violations).
Unit B22 at 4123 9th Avenue has no open violations (4 past violations).
Unit B34 at 4123 9th Avenue has no open violations (5 past violations).
Unit B35 at 4123 9th Avenue has no open violations (1 past violation).
Unit B4 at 4123 9th Avenue has no open violations (5 past violations).
Unit B41 at 4123 9th Avenue has no open violations (12 past violations).
Unit B42 at 4123 9th Avenue has no open violations (19 past violations).
Unit B44 at 4123 9th Avenue has no open violations (16 past violations).
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