5409 Ave O

Heat or hot waterApt 12 class C · closed · HPD violation

Heat or hot waterApt 2 complaint

Heat or hot waterApt 3 complaint

Show 14 more

Heat or hot waterApt 3 complaint

Heat or hot waterApt 3 complaint

BE-EXT-LP Boiler DOB violation

Heat or hot waterApt 5 complaint

Low Pressure Boiler DOB violation

Heat or hot waterApt 2 complaint

Heat or hot waterApt 2 complaint

Heat or hot waterApt 6 complaint

1995 Dec

Boiler permit

1995 Aug

Boilers non-hazardous · never closed · DOB violation

1993 Aug

Local Law 62/91 - Boilers never closed · DOB violation

Heat source

Boiler burning natural gas (Weil Mclain Lgb-6 WEIL MCLAIN LGB-6), registration expired since Oct 1995

Clean Air Tracking System (boiler registrations), as of 2026-10-21 · See this building's boiler registrations on NYC Open Data →

Boiler inspection filings

Latest accepted inspection Dec 2025, defects reported: yes

DOB NOW: Safety Boiler, as of 2026-10-20 · See the boiler filings at DOB →

What this counts

Accepted annual boiler inspection filings, any date

Boiler work permits

Latest boiler work permit 1995

DOB Permit Issuance (BIS), as of 2026-10-20

What this counts

DOB boiler permits (BIS and DOB NOW); a permit dates work, not the boiler's age

Heat and hot water complaints

7 heat or hot water complaints

Housing Maintenance Code Complaints and Problems, as of 2026-10-20 · See the complaints at HPD Online →

What this counts

HPD complaints, heat season 2025–26 (Oct 1–May 31)

Water and pipes

Issues on record · 15 complaints, 2024–2026 · 9 in the past year

Pests and cleanliness

Issues on record · 17 complaints, 2024–2026 · 12 in the past year

What has happened here

Rubbish and cleanliness class B · HPD violation

Unsanitary conditions complaint

Show 22 more

PestsApt 10 class C · closed · HPD violation

PestsApt 10 class C · closed · HPD violation

MoldApt 10 class A · closed · HPD violation

PestsApt 12 class C · closed · HPD violation

MoldApt 10 complaint

MoldApt 2 class B · closed · HPD violation

MoldApt 2 class A · closed · HPD violation

PestsApt 3 class C · closed · HPD violation

MoldApt 2 complaint

2026 Feb

PestsApt 12 complaint

Mold, pestsApt 2 complaint

Electrical

9 complaints, 2024–2026 · 5 in the past year

What has happened here

ElectricalApt 7 complaint

ElectricalApt 4 complaint

ElectricalApt 3 class B · closed · HPD violation

ElectricalApt 10 class B · closed · HPD violation

ElectricalApt 10 complaint

ElectricalApt 12 complaint

Show 5 more

ElectricalApt 3 complaint

ElectricalApt 3 complaint

ElectricalApt 3 complaint

ElectricalApt 5 complaint

ElectricalApt 5 complaint

Flooding

No issues on record

FEMA flood zone

Outside FEMA's 1% annual-chance flood zone: X

FEMA National Flood Hazard Layer, as of 2026-10-21

What this counts

Effective FIRM zones touching the building footprint

Stormwater flooding

Extreme storm, 2080 sea levels: Not in mapped flooding; Moderate storm, 2050 sea levels: Not in mapped flooding; Moderate storm, today's sea levels: Not in mapped flooding; Limited storm, today's sea levels: Not loaded (file format unreadable)

NYC Stormwater Flood Maps, as of 2024-07-03

What this counts

Mapped ponding touching the building footprint

BasementfoundNo basement

Rent and tenancy

On the state list

Rent stabilizationWhole tax lot

On the state's list of buildings with at least one rent-stabilized apartment (2024 registrations); listed for this tax lot (1 addresses), not under this building's address

Rent Stabilized Building Lists (2024 HCR registrations), as of 2025-11-30

What this counts

The list doesn't say which apartments are stabilized, and being listed isn't proof of current status. For a specific apartment, request its rent history from HCR

Gas

What has happened here

2025 Sep

PL-PER Gas Piping - LL152 DOB violation

Gas piping

Open violation for not filing the periodic gas piping inspection (2025)

DOB Safety Violations, as of 2026-10-20

What this counts

Paperwork violation: the filing is missing, which is not a finding about the pipes

General condition and all records

HPD violations

91 open: 90 about building conditions — walls, floors and stairs (28), fire safety (15), other conditions (12), leaks (8); 15 immediately hazardous (class C), 1 about paperwork or notices. Also 2 older records from 2008–2016 never closed. 25 further violations from 2025–2026 were closed. 620 violations on record in all, 1999–2026 — the 167 most recent are listed here

Walls, floors and stairs class A

Walls, floors and stairs class B

Other conditions class C

Walls, floors and stairs class B

Show 42 more

Doors and windows class B

Walls, floors and stairs class A

Other conditions class B

Walls, floors and stairs class A

Doors and windows class B

Other conditions class A

Rubbish and cleanliness class B

Other conditions class B

Fire safety class B

Walls, floors and stairsApt 11 class A

Walls, floors and stairsApt 10 class A

Walls, floors and stairsApt 10 class B

Walls, floors and stairsApt 10 class C

ElectricalApt 3 class B · closed

Walls, floors and stairsApt 3 class B · closed

Doors and windowsApt 3 class B · closed

Smoke or CO detectorsApt 10 class B · closed

Smoke or CO detectorsApt 10 class B · closed

PestsApt 10 class C · closed

PestsApt 10 class C · closed

Walls, floors and stairsApt 10 class B · closed

Doors and windowsApt 10 class B · closed

ElectricalApt 10 class B · closed

Fire safetyApt 10 class B · closed

MoldApt 10 class A · closed

Heat or hot waterApt 12 class C · closed

PestsApt 12 class C · closed

MoldApt 2 class B · closed

Walls, floors and stairsApt 2 class B · closed

MoldApt 2 class A · closed

2026 Feb

PestsApt 3 class C · closed

Lead-based paintApt 3 class C · closed

Doors and windowsApt 3 class B · closed

Fire safetyApt 3 class B · closed

Walls, floors and stairsApt 3 class B · closed

LeaksApt 3 class B · closed

Walls, floors and stairsApt 3 class B · closed

Other conditions class A · closed

and 43 more at the source

Housing Maintenance Code Violations, as of 2026-10-20 · Read these violations in full at HPD Online →

What this counts

Open HPD violations inspected in the last 10 years; class C = immediately hazardous. Paperwork = failure to file, notify or certify

DOB violations

11 open: 2 about building conditions, 3 about filings or paperwork, 6 older than 10 years

Construction class - 2

PL-PER Gas Piping - LL152

BE-EXT-LP Boiler

2025 Sep

Construction class - 1 · never closed

Low Pressure Boiler

2008 Jul

2002 Jun

Construction hazardous · never closed

1999 Sep

Zoning non-hazardous · never closed

1995 Aug

Boilers non-hazardous · never closed

Show 3 more

1994 Nov

Zoning non-hazardous · never closed

1993 Aug

Local Law 62/91 - Boilers never closed

1989 Sep

Zoning never closed

DOB Violations, as of 2026-10-20 · Read these violations in full at DOB →

What this counts

Open DOB, ECB and DOB NOW Safety violations, any date, one per violation. ECB class 1 = hazardous, class 2 = major

Resident complaints to the city

12 paint or plaster, 11 mold, 10 plumbing, 9 electrical, 9 heat or hot water, 9 leaks, 8 floors or stairs, 6 pests, 5 doors or windows, 2 appliances, 2 general repairs, 1 unsanitary conditions

Appliances, electrical, floors or stairs, paint or plaster, plumbing, pests, leaksApt 7

Paint or plaster, plumbing, moldApt 12

MoldApt 12

2026 Aug

Electrical, floors or stairs, paint or plaster, mold, leaksApt 4

Unsanitary conditions

Paint or plaster, plumbing, moldApt 12

2026 Jun

LeaksApt 2

Doors or windows, pestsApt 3

Show 43 more

Doors or windows, electrical, floors or stairs, general repairs, mold, leaksApt 10

Electrical, floors or stairs, paint or plaster, plumbingApt 12

Floors or stairs, paint or plaster, mold, leaksApt 2

Heat or hot waterApt 2

Heat or hot water, pestsApt 3

Heat or hot water

Heat or hot waterApt 3

Electrical, heat or hot water, pestsApt 3

Doors or windows

Doors or windows, paint or plaster, mold, leaksApt 3

Electrical, paint or plasterApt 3

Floors or stairs, leaksApt 12

Paint or plaster, plumbing, moldApt 12

Floors or stairs, leaksApt 12

2025 Mar

Mold, pestsApt 2

Appliances, floors or stairs, paint or plasterApt 12

Electrical, heat or hot water, plumbingApt 5

Paint or plaster, moldApt 6

Doors or windows, plumbingApt 5

Paint or plasterApt 2

General repairs, plumbingApt 7

Paint or plasterApt 2

2024 Aug

Doors or windowsApt 12

Heat or hot waterApt 2

Heat or hot waterApt 2

Heat or hot waterApt 6

General repairsApt 11

Appliances, floors or stairs, plumbing, moldApt 12

General repairsApt 4

Doors or windows, general repairsApt 4

Housing Maintenance Code Complaints and Problems, as of 2026-10-20 · See the complaints at HPD Online →

What this counts

HPD complaints received in the last 2 years; the list below is every complaint on record for the last three years

Permit history

7 permits since 1990

2014 Feb

2012 Jul

2011 Oct

2010 Jul

2008 Mar

Plumbing permit, Boiler permit

1995 Dec

and 1 more at the source

DOB NOW: Build – Approved Permits, as of 2026-10-20 · See every permit at DOB →

What this counts

DOB permits issued (DOB NOW and legacy BIS), one per job and work type; excludes sheds

Everything else on record

Appliances, floors or stairs, paint or plasterApt 7 complaint

Other conditions class C · HPD violation

Other conditions class B · HPD violation

Other conditions class A · HPD violation

Other conditions class B · HPD violation

2026 Aug

Paint or plasterApt 12 complaint

Show 31 more

Floors or stairs, paint or plasterApt 4 complaint

Paint or plasterApt 12 complaint

Doors or windowsApt 3 complaint

Smoke or CO detectorsApt 10 class B · closed · HPD violation

Smoke or CO detectorsApt 10 class B · closed · HPD violation

Doors or windows, floors or stairs, general repairsApt 10 complaint

Floors or stairs, paint or plasterApt 12 complaint

Floors or stairs, paint or plasterApt 2 complaint

Doors or windows complaint

Doors or windows, paint or plasterApt 3 complaint

Other conditions class A · closed · HPD violation

General repairsApt 3 complaint

Paint or plasterApt 3 complaint

Floors or stairsApt 12 complaint

Paint or plasterApt 12 complaint

Floors or stairsApt 12 complaint

Appliances, floors or stairs, paint or plasterApt 12 complaint

Paint or plasterApt 6 complaint

Doors or windowsApt 5 complaint

Paint or plasterApt 2 complaint

Paint or plasterApt 2 complaint

2024 Aug

Doors or windowsApt 12 complaint

2024 Aug

AppliancesApt 12 complaint

2024 May

General repairsApt 7 complaint

General repairsApt 11 complaint

Appliances, floors or stairsApt 12 complaint

General repairsApt 4 complaint