Building health · BROOKLYN, NY
built 1928 · 4 stories · 5 apartments
Also known as 170 Nassau Ave — one building, several doors.
Registered with the city: 70 DIAMOND STREET LLC; SAFEGUARD REALTY MGMT, INC · 4 other buildings here list it; 178 NASSAU, LLC · 1 other building here list it; 70 DIAMOND STREET 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 Sep
Construction class - 2
DOB Violations
2026 Sep
Construction class - 2
2026 May
Pests class A · paperwork
Housing Maintenance Code Violations
2026 Mar
Heat or hot water
Housing Maintenance Code Complaints and Problems
2026 Mar
Heat or hot water
2026 Jan
PL-PER Gas Piping - LL152
DOB Violations
2025 Nov
Other conditions class I · paperwork
Housing Maintenance Code Violations
2025 Oct
Latest accepted inspection Oct 2025, defects reported: no
DOB NOW: Safety Boiler
2025 Jun
Pests class A · paperwork
Housing Maintenance Code Violations
2024 Nov
Other conditions class I · paperwork
2024 Oct
Plumbing permit
DOB NOW: Build – Approved Permits
2024 Oct
General construction permit
2024 Apr
Pests class A · paperwork · closed
Housing Maintenance Code Violations
2023 Sep
Construction class - 2
DOB Violations
2022 Nov
Construction class - 1
2022 Nov
Construction class - 1
2022 Apr
General construction permit
DOB NOW: Build – Approved Permits
2014 Jan
Fire protection permit
2009 Sep
Walls, floors and stairsApt 3R class B · never closed
Housing Maintenance Code Violations
2009 Sep
Smoke or CO detectorsApt 3R class B · never closed
2009 Sep
Smoke or CO detectorsApt 3R class B · never closed
2009 Sep
Fire safetyApt 3R class B · never closed
2007 Sep
Outside FEMA's 1% annual-chance flood zone: X
FEMA National Flood Hazard Layer
2007 Aug
GasApt 1 class C · never closed
Housing Maintenance Code Violations
2007 May
Cranes and Derricks hazardous · never closed
DOB Violations
2007 Jan
Boilers hazardous · never closed
2006 Dec
Smoke or CO detectorsApt 4R class B · never closed
Housing Maintenance Code Violations
2006 Dec
Fire safetyApt 3R class B · never closed
2006 Dec
Smoke or CO detectorsApt 3R class B · never closed
2006 Dec
Fire safetyApt 4L class B · never closed
2006 Dec
Smoke or CO detectorsApt 4L class B · never closed
2005 Sep
Heating/ventilation permit, General construction permit
DOB NOW: Build – Approved Permits
2002 Oct
General construction permit, Plumbing permit, Fire protection permit, Heating/ventilation permit
1995 Jul
Boiler burning natural gas (National 25 Series 6-25-B NATIONAL 25 SERIES 6-25-B), registration expired since Jul 1995
Clean Air Tracking System (boiler registrations)
1993 Aug
Local Law 62/91 - Boilers never closed
DOB Violations
1928
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.