Building health · BROOKLYN, NY
built 1920 · 4 stories · 15 apartments
Also known as 525 4 St — one building, several doors.
Registered with the city: DILIGENT PROPERTIES ASSOCIATES LLC
The building’s record over time
Filings, permits, complaints and violations from city records, newest first. Highlighted rows are unresolved and from the last year; older unresolved records are marked “never closed”. Tap any row to read it on the agency’s own site.
2026 Jul
Boiler burning natural gas (Weil-Mclain LGB-7), registration current since Jul 2026
Clean Air Tracking System (boiler registrations)
2025 Nov
Latest accepted inspection Nov 2025, defects reported: no
DOB NOW: Safety Boiler
2025 Jun
Pests class A · paperwork · closed
Housing Maintenance Code Violations
2023 Dec
Mechanical systems permit
DOB NOW: Build – Approved Permits
2023 Mar
General construction permit
2022 Dec
Plumbing permit
2022 Nov
Plumbing permit
2022 Sep
Alteration permit
2019 Sep
General construction permit
2019 Jan
Heat or hot water class C
Housing Maintenance Code Violations
2018 Nov
General construction permit
DOB NOW: Build – Approved Permits
2018 Nov
Construction fence permit
2012 Oct
No active shed permit
2011 Nov
General construction permit
2009 Apr
Plumbing permit
2007 Sep
Outside FEMA's 1% annual-chance flood zone: X
FEMA National Flood Hazard Layer
1920
Built
PLUTO (tax lot data)
Dates are the city's record dates, shown to the month.
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.