Building health · BROOKLYN, NY

313 Knickerbocker Ave

built 1931 · 4 stories · 8 apartments
Also known as 818 Hart St, 820 Hart St — one building, several doors.
Registered with the city: DALAN MANAGEMENT · 40 other buildings here list it; 313 KNICKERBOCKER LLC; 313 KNICKERBOCKER, LLC
Last sold Nov 2025 for $2,675,000 · NYC Department of Finance
Mold: 6 reports to the city since 2024
2024Mold · Mar 2024 · 1 report (2 complaints)Mar 21, 2024Mar 21, 2024 (2nd)Mold · May 2024 · 1 report (1 complaint)May 6, 2024Mold · Jul 2024 · 2 reports (3 complaints)Jul 12, 2024Jul 16, 2024Jul 25, 2024
2025Mold · Oct 2025 · 1 report (1 complaint)Oct 9, 2025Mold · Nov 2025 · 1 report (1 complaint)Nov 2, 2025
2026
Source: HPD Complaints and Problems · as of 2026-10-23

By apartment

6 of 8 apartments named in a city record
Apt 1Apt 2Apt 3Apt 4RApt 5Apt 6

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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