Building health · BROOKLYN, NY

4307 12 Ave

built 1916 · 4 stories · 16 apartments
Registered with the city: MAZEL 12AV LLC; MAZEL 12 AV LLC
Heat or hot water: 11 reports to the city since 2024
2024Heat or hot water · Jan 2024 · 1 report (1 complaint)Jan 31, 2024Heat or hot water · Dec 2024 · 1 report (1 complaint)Dec 21, 2024
2025Heat or hot water · Jan 2025 · 1 report (2 complaints)Jan 6, 2025Jan 11, 2025Heat or hot water · Nov 2025 · 2 reports (2 complaints)Nov 13, 2025Nov 26, 2025Heat or hot water · Dec 2025 · 1 report (1 complaint)Dec 15, 2025
2026Heat or hot water · Jan 2026 · 1 report (1 complaint)Jan 22, 2026Heat or hot water · Apr 2026 · 2 reports (2 complaints)Apr 4, 2026Apr 19, 2026Heat or hot water · Sep 2026 · 1 report (2 complaints)Sep 18, 2026Sep 21, 2026Heat or hot water · Oct 2026 · 1 report (2 complaints)Oct 14, 2026Oct 19, 2026
Source: HPD Complaints and Problems · as of 2026-10-24

By apartment

9 of 16 apartments named in a city record
Apt 1Apt A2Apt A4Apt B1Apt B3Apt C2Apt C4Apt D1+1 more

Also reported

2024 – 2026

A filled month had a report to HPD; darker means more than one, and the past year is brightest. Tap one to read it. Complaints within a week count as one report. Records list complaints filed, not conditions found.

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