Building health · BROOKLYN, NY
built 1931 · 4 stories · 9 apartments
Registered with the city: HERNCO, LLC · 7 other buildings here list it; 251 20TH STREET LLC; 251 20TH STREET, LLC
Ownership transferred Apr 2018, no sale price · NYC Department of Finance
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 Aug
Latest accepted inspection Aug 2026, defects reported: no
DOB NOW: Safety Boiler
2024 Sep
Smoke or CO detectors class A · closed
Housing Maintenance Code Violations
2024 Sep
Walls, floors and stairs class A · closed
2024 Sep
Walls, floors and stairs class A · closed
2024 Sep
Fire safety class B · closed
2024 Sep
Fire safetyApt 1R class C · closed
2024 Sep
PestsApt 1R class C · closed
2024 Sep
Doors and windowsApt 1R class A · closed
2024 Sep
Fire safetyApt 1R class C · closed
2024 Aug
Pests class C · closed
2024 Aug
Doors and windows class A · closed
2024 Aug
Walls, floors and stairs class C · closed
2024 Aug
Doors or windows, paint or plaster, plumbing
Housing Maintenance Code Complaints and Problems
2024 Feb
Walls, floors and stairsApt 1 class B · closed
Housing Maintenance Code Violations
2024 Feb
Doors and windowsApt 1 class C · closed
2024 Feb
Walls, floors and stairsApt 1 class B · closed
2024 Feb
Walls, floors and stairsApt 1 class C · closed
2024 Feb
Walls, floors and stairsApt 1 class B · closed
2024 Feb
Paint or plaster, plumbingApt 1
Housing Maintenance Code Complaints and Problems
2018 Apr
Ownership transferred, no sale price
NYC Citywide Annualized Calendar Sales
2015 Mar
Low Pressure Boiler never closed
DOB Violations
2014 May
Low Pressure Boiler never closed
2007 Sep
Outside FEMA's 1% annual-chance flood zone: X
FEMA National Flood Hazard Layer
1931
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.