Building health · BROOKLYN, NY
built 1931 · 4 stories · 6 apartments
Registered with the city: RENAISSANCE REALTY GROUP LLC · 30 other buildings here list it; 323 KNICKERBOCKER LLC; 323 KNICKERBOCKER ASSOC, 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 May
Pests class A · paperwork · closed
Housing Maintenance Code Violations
2025 Jun
Pests class A · paperwork · closed
2024 Jan
Walls, floors and stairs class A · closed
2024 Jan
Heat or hot waterApt 1A
Housing Maintenance Code Complaints and Problems
2017 Aug
Heating/ventilation permit
DOB NOW: Build – Approved Permits
2017 Jun
Heating/ventilation permit
2011 Oct
Doors and windows class C · never closed
Housing Maintenance Code Violations
2008 Jun
Heat or hot water class C · paperwork · never closed
2007 Dec
No active shed permit
DOB NOW: Build – Approved Permits
2007 Sep
Latest boiler work permit 2007
DOB Permit Issuance (BIS)
2007 Sep
Boiler permit
DOB NOW: Build – Approved Permits
2007 Sep
Outside FEMA's 1% annual-chance flood zone: X
FEMA National Flood Hazard Layer
2007 Jun
Plumbing permit, General construction permit, Construction fence permit
DOB NOW: Build – Approved Permits
2004 Jul
Construction fence permit, Alteration permit
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.