4307 12th Avenue, Brooklyn

City inspectors were last at this 16-unit walk-up apartment building on July 26, 2026, and the resulting violation remains open.

4307 12th Avenue is a 16-unit building in Brooklyn, New York City (BBL 3056040006). This building is associated with Mazel 12av LLC. Brix tracks 20 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 60 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: 40 complaints
• Plumbing: 4 complaints
• General: 4 complaints
• Appliance: 3 complaints

The most recent complaint on this building was filed October 14, 2026.

Conditions cited on open violations at this address:

• § 27-2013 ADM CODE PAINT WITH LIGHT COLORED PAINT TO THE SATISFACTION OF THIS DEPARTMENT ALL PEELING PAINT SURFACES IN THE PRIVATE HALLWAY , THE FOYER LOCATED A
• § 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR AT NORTH AND SOUTH WALLS NORTH WALL, SOUTH WALL IN THE FOYER L
• § 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR AT NORTH AND SOUTH WALLS NORTH WALL, SOUTH WALL IN THE PRIVATE
• § 27-2005, 2006, 2037 HMC: PROPERLY REPAIR AND ABATE UNSAFE ELECTRIC WIRING CONDITION CONSISTING OF EXPOSED WIRE FROM THE CEILING IN THE 2nd ROOM FROM EAST LOCA

The building last changed hands on April 16, 2013 for $2,300,000, according to recorded deeds.

Brix score: 13/100. View the Building Report on Brix.

See every NYC building owned by Mazel 12av LLC on the landlord portfolio page.