Building health · BROOKLYN, NY
built 1931 · 6 stories · 104 apartments
Also known as 9718 4 Ave, 9720 4 Ave — one building, several doors.
Registered with the city: FirstService Residential · 304 other buildings here list it; 351 MARINE AVENUE OWNER CORP; 351 MARINE OWNERS CORP
Worth knowing
9 open immediately hazardous (class C) HPD violations about fire safety and pests and mold
Source: Housing Maintenance Code Violations · as of 2026-10-20
By apartment
9 of 104 apartments named in a city recordHow often each problem is reported
2024 – 2026- Heat or hot water2 reports2024Heat or hot water · Jan 2024 · 1 report (1 complaint)Jan 12, 20242025Heat or hot water · Oct 2025 · 1 report (1 complaint)Oct 14, 20252026
- Pests2 reports2024Pests · Sep 2024 · 1 report (1 complaint)Sep 20, 20242025Pests · Jul 2025 · 1 report (1 complaint)Jul 25, 20252026
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.
Status describes city records, not the building's condition. Tap a system for its records and sources.
These are city records, not an inspection by Blueflo. Every item shows its source and the date it was last checked.
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Not an inspection and not a warranty. May not be used for tenant screening — terms of use · privacy.