Building health · MANHATTAN, NY
built 1900 · 5 stories · 16 apartments
Also known as 340 3 Ave — one building, several doors.
Registered with the city: CORNERSTONE MGMT SYSTEMS INC · 40 other buildings here list it; THIRD & 25 LLC; THIRD & 25TH 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
Latest accepted inspection Sep 2026, defects reported: no
DOB NOW: Safety Boiler
2026 Jan
Boiler burning natural gas (Weil Mclain 880), registration current since Jan 2026
Clean Air Tracking System (boiler registrations)
2024 Apr
No active shed permit; permits since Apr 2023, last expired Apr 2024
DOB NOW: Build – Approved Permits
2023 Nov
BE-EXT-LP Boiler
DOB Violations
2022 Oct
Mechanical systems permit
DOB NOW: Build – Approved Permits
2017 Jun
Heat or hot water class C · paperwork
Housing Maintenance Code Violations
2011 Feb
Latest boiler work permit 2011 (2 on record)
DOB Permit Issuance (BIS)
2011 Feb
Plumbing permit, Boiler permit
DOB NOW: Build – Approved Permits
2009 Jun
Sign permit
2009 May
Fire protection permit
2009 Mar
Plumbing permit, Heating/ventilation permit, General construction permit, Construction fence permit
2008 Jun
General construction permit
2007 Sep
Outside FEMA's 1% annual-chance flood zone: X
FEMA National Flood Hazard Layer
2001 Jul
Construction never closed
DOB Violations
1999 Mar
Construction never closed
1900
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.