307 Martense Street, Brooklyn

51 open HPD violations at this address, 15 of them class C — the immediately hazardous tier — on a 27-unit walk-up apartment building in Brooklyn.

307 Martense Street is a 27-unit building in Brooklyn, New York City (BBL 3048680079). This building is associated with Ditmas Park 307, LLC. Brix tracks 51 open HPD violations for this property, along with inspection history, DOB filings, tenant complaints, and rent stabilization status.

Built in 1922, 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 179 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:

• Heat/hot Water: 79 complaints
• Unsanitary Condition: 24 complaints
• Plumbing: 18 complaints
• Flooring/stairs: 14 complaints

The most recent complaint on this building was filed March 15, 2026.

Conditions cited on open violations at this address:

• § 27-2005 HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE BASE CABINET DOOR AT NORTH IN THE KITCHEN LOCATED AT APT B1, 2nd STORY, 3rd APARTMENT FROM WES
• § 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE CERAMIC FLOOR TILES IN THE KITCHEN LOCATED AT APT B1, 2nd STORY, 3rd APARTMENT
• HMC ADM CODE: § 27-2017
• § 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE BASE CABINET COUNTER TOP AT NORTH WALL IN THE KITCHEN LOCATED AT APT B1, 2nd ST

The building last changed hands on June 18, 2024 for $4,735,590.78, according to recorded deeds.

Brix rating: Concerning (17/100). View the Building Report on Brix.

See every NYC building owned by Ditmas Park 307, LLC on the landlord portfolio page.