Building health · MANHATTAN, NY

21 Convent Ave

built 1920 · 5 stories · 24 apartments
Also known as 423 W 128 St — one building, several doors.

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 Mar
Latest accepted inspection Mar 2026, defects reported: no
DOB NOW: Safety Boiler
2026 Jan
Heat or hot waterApt 6
Housing Maintenance Code Complaints and Problems
2025 Oct
PlumbingApt 23
2025 Oct
Heat or hot waterApt 19
2025 Oct
MoldApt 5 class B · closed
Housing Maintenance Code Violations
2025 Oct
PestsApt 5 class C · closed
2025 Oct
MoldApt 5 class A · closed
2025 Oct
Other conditionsApt 5 class A · closed
2025 Sep
Paint or plaster, plumbing, moldApt 5
Housing Maintenance Code Complaints and Problems
2025 Aug
Walls, floors and stairsApt 23 class B · closed
Housing Maintenance Code Violations
2025 Aug
Smoke or CO detectorsApt 23 class B · closed
2025 Aug
Smoke or CO detectorsApt 23 class B · closed
2025 Aug
Fire safetyApt 23 class C · closed
2025 Aug
PestsApt 23 class C · closed
2025 Aug
PestsApt 23 class C · closed
2025 Jul
Heat or hot waterApt 23
Housing Maintenance Code Complaints and Problems
2024 Oct
Fire safety class B
Housing Maintenance Code Violations
2024 Oct
Floors or stairsApt 1
Housing Maintenance Code Complaints and Problems
2024 Oct
Doors or windows, electrical, general repairs, safety
2024 May
Fire safety class C
Housing Maintenance Code Violations
2024 May
Fire safety class B · closed
2024 May
Fire safety class C · closed
2024 May
Boiler burning natural gas (Rudd RCB-825), registration current since May 2024
Clean Air Tracking System (boiler registrations)
2022 May
Doors and windowsApt 9 class A
Housing Maintenance Code Violations
2020 Jul
Smoke or CO detectors class A
2020 Jan
Walls, floors and stairsApt 9 class A
2020 Jan
Walls, floors and stairsApt 9 class B
2020 Jan
MoldApt 9 class B
2020 Jan
PestsApt 9 class C
2019 Aug
Outside FEMA's 1% annual-chance flood zone: X
FEMA National Flood Hazard Layer
2018 Dec
Walls, floors and stairsApt 20 class B
Housing Maintenance Code Violations
2018 Dec
LeaksApt 20 class B
2018 Dec
Walls, floors and stairsApt 20 class B
2018 Dec
Walls, floors and stairsApt 20 class B
2018 Dec
LeaksApt 20 class B
2018 Dec
Walls, floors and stairsApt 20 class B
2018 Dec
LeaksApt 20 class B
2017 Jan
Plumbing permit, General construction permit
DOB NOW: Build – Approved Permits
2017 Jan
Plumbing permit, General construction permit
2016 Mar
Fire safety class B · never closed
Housing Maintenance Code Violations
2015 Dec
Walls, floors and stairsApt 3 class B · never closed
2015 Feb
Fire safety class B · never closed
2015 Feb
Walls, floors and stairsApt 3 class B · never closed
2015 Feb
Fire safetyApt 3 class B · never closed
2015 Feb
PlumbingApt 3 class B · never closed
2015 Feb
Fire safetyApt 3 class B · never closed
2013 Dec
Doors and windowsApt 20 class B · never closed
2013 Apr
Smoke or CO detectorsApt 3 class B · never closed
2013 Feb
General construction permit
DOB NOW: Build – Approved Permits
2011 Mar
Walls, floors and stairsApt 23 class B · never closed
Housing Maintenance Code Violations
2009 Aug
General construction permit
DOB NOW: Build – Approved Permits
2007 Jan
Local Law 62/91 - Boilers never closed
DOB Violations
2007 Jan
Local Law 62/91 - Boilers never closed
2006 Dec
Fuel storage permit, Fuel burning permit
DOB NOW: Build – Approved Permits
1999 Mar
Fuel burning permit
1998 Jul
Latest boiler work permit 1998
DOB Permit Issuance (BIS)
1998 Jul
Plumbing permit
DOB NOW: Build – Approved Permits
1997 Dec
No active shed permit
1920
Built
PLUTO (tax lot data)
See all records and sources
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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