City inspectors were last at this 21-unit walk-up apartment building on August 19, 2026, and the resulting violation remains open.
12 Martense Street is a 21-unit building in Brooklyn, New York City (BBL 3050890012). This building is associated with 12 Martense Holding LLC. Brix tracks 7 open HPD violations for this property, along with inspection history, DOB filings, tenant complaints, and rent stabilization status.
Built in 1925, 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 30 HPD complaints about this building over the last five years, most often about plumbing.
What tenants have called the city about here over the last five years:
The most recent complaint on this building was filed October 8, 2026.
Conditions cited on open violations at this address:
The building last changed hands on May 30, 2000 for $600,000, according to recorded deeds.
Brix score: 70/100. View the Building Report on Brix.
See every NYC building owned by 12 Martense Holding LLC on the landlord portfolio page.
Part of Flatbush — see violations, complaints, and landlord activity across the whole neighborhood.
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Unit 2-B at 12 Martense Street has 5 open violations.
Unit 4A at 12 Martense Street has no open violations (2 past violations).
Unit 4B at 12 Martense Street has no open violations (9 past violations).
Unit 4D at 12 Martense Street has no open violations (9 past violations).
Unit 4E at 12 Martense Street has no open violations (13 past violations).
Unit 3A at 12 Martense Street has no open violations (14 past violations).
Unit 3B at 12 Martense Street has no open violations (14 past violations).
Unit 3C at 12 Martense Street has no open violations (12 past violations).
Unit 3D at 12 Martense Street has no open violations (3 past violations).
Unit 3E at 12 Martense Street has no open violations (8 past violations).
Unit 2A at 12 Martense Street has no open violations (14 past violations).
Unit 2C at 12 Martense Street has no open violations (6 past violations).
Unit 2D at 12 Martense Street has no open violations (7 past violations).
Unit 2E at 12 Martense Street has no open violations (7 past violations).
Unit 1A at 12 Martense Street has no open violations (5 past violations).
Unit 1B at 12 Martense Street has no open violations (41 past violations).
Unit 1C at 12 Martense Street has no open violations (12 past violations).
Unit 1D at 12 Martense Street has no open violations (10 past violations).
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