Building health · BROOKLYN, NY
built 1925 · 4 stories · 9 apartments
Also known as 3921 5 Ave, 507 40 St, 511 40 St, 511 40 St — one building, several doors.
Worth knowing
10 open immediately hazardous (class C) HPD violations about fire safety and leaks and heat or hot water and pests and walls, floors and stairs
Source: Housing Maintenance Code Violations · as of 2026-10-19
By apartment
1 of 9 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 6, 2024Heat or hot water · Jul 2024 · 1 report (1 complaint)Jul 15, 202420252026
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.