Building health · BROOKLYN, NY
built 1931 · 4 stories · 8 apartments
Registered with the city: KOTSONIS ORGANIZATION LLC. · 13 other buildings here list it; 664 6TH AVENUE, LLC.; 664 6TH AVENUE 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
Other conditions class A · closed
Housing Maintenance Code Violations
2026 Jul
Fire safety class C · closed
2026 Jun
General repairsApt 1R
Housing Maintenance Code Complaints and Problems
2026 Apr
Pests class A · paperwork · closed
Housing Maintenance Code Violations
2026 Apr
Plumbing permit, General construction permit, Heating/ventilation permit
DOB NOW: Build – Approved Permits
2026 Feb
Plumbing permit
2026 Feb
General construction permit
2026 Jan
Latest accepted inspection Jan 2026, defects reported: no
DOB NOW: Safety Boiler
2025 Jun
Pests class A · paperwork · closed
Housing Maintenance Code Violations
2024 Dec
Boiler burning natural gas (Burnham KIN-11), registration current since Dec 2024
Clean Air Tracking System (boiler registrations)
2017 Dec
Latest boiler work permit 2017 (2 on record)
DOB Permit Issuance (BIS)
2017 Dec
Plumbing permit, Boiler permit
DOB NOW: Build – Approved Permits
2007 Sep
Outside FEMA's 1% annual-chance flood zone: X
FEMA National Flood Hazard Layer
1993 Aug
Local Law 62/91 - Boilers never closed
DOB Violations
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.