531 Lenox Ave

Heat or hot water class C · paperwork · HPD violation

2026 Jan

Heat or hot waterApt 5A complaint

2025 Oct

Heat or hot waterApt 1B complaint

Heat or hot waterApt 2A class C · closed · HPD violation

Show 16 more

Heat or hot waterApt 4B class C · closed · HPD violation

Heat or hot waterApt 2A complaint

2025 Jan

2024 Dec

Heat or hot waterApt 5A complaint

2024 Oct

BE-EXT-LP Boiler DOB violation

2024 Oct

BE-EXT-LP Boiler DOB violation

2024 Feb

Heat or hot waterApt 5A complaint

2023 Nov

Boilers class - 2 · DOB violation

2019 Mar

2012 Jul

Boiler permit

2011 Jun

Heating/ventilation permit

2006 Jan

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

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

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

Heat source

Boiler burning natural gas (Lochinvar CHN - 502), registration expired since Jul 2012

Clean Air Tracking System (boiler registrations), as of 2026-10-19 · See this building's boiler registrations on NYC Open Data →

Boiler inspection filings

Latest accepted inspection Oct 2024, defects reported: no

DOB NOW: Safety Boiler, as of 2026-10-17 · See the boiler filings at DOB →

What this counts

Accepted annual boiler inspection filings, any date

Boiler work permits

Latest boiler work permit 2012

DOB Permit Issuance (BIS), as of 2026-10-19

What this counts

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

Heat and hot water complaints

3 heat or hot water complaints

Housing Maintenance Code Complaints and Problems, as of 2026-10-19 · 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 · 4 complaints, 2025–2026 · 2 in the past year

What has happened here

Leaks class A · HPD violation

LeaksApt 3B class B · HPD violation

LeaksApt 4B class B · HPD violation

PlumbingApt 3B complaint

PlumbingApt 4B complaint

LeaksApt 2A complaint

Show 6 more

PlumbingApt 4B complaint

LeaksApt 3A class C · closed · HPD violation

LeaksApt 1A class C · closed · HPD violation

Water service line

Non-Lead (records)

Lead Service Line Location Coordinates, as of 2026-01-30

Pests and cleanliness

Issues on record · 5 complaints, 2025–2026 · 3 in the past year

What has happened here

2026 Sep

PestsApt 5B complaint

PestsApt 4B class C · HPD violation

PestsApt 3B class C · HPD violation

Pests class C · HPD violation

PestsApt 3B complaint

Mold, pestsApt 4B complaint

Show 7 more

MoldApt 2A complaint

MoldApt 4B class A · closed · HPD violation

Pests class A · paperwork · closed · HPD violation

MoldApt 4B complaint

2024 Apr

MoldApt 2A class A · closed · HPD violation

MoldApt 4B class A · closed · HPD violation

MoldApt 4B class A · closed · HPD violation

Electrical

Issues on record · 1 complaint, 2026

What has happened here

Electrical class B · closed · HPD violation

ElectricalApt 3B class B · HPD violation

ElectricalApt 3B class B · HPD violation

ElectricalApt 3B class B · HPD violation

ElectricalApt 4B class B · HPD violation

ElectricalApt 4B class B · HPD violation

Show 1 more

ElectricalApt 3B 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 2026-10-19

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 stabilization

On the state's list of buildings with at least one rent-stabilized apartment (2024 registrations)

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

General condition and all records

HPD violations

252 open: 244 about building conditions — walls, floors and stairs (77), leaks (35), smoke or CO detectors (25), doors and windows (22); 42 immediately hazardous (class C), 8 about paperwork or notices. Also 17 older records from 1978–2015 never closed. 25 further violations from 2023–2026 were closed. 341 violations on record in all, 1978–2026 — the 294 most recent are listed here

Other conditions class A

Walls, floors and stairs class A

Heat or hot water class C · paperwork

Smoke or CO detectors class A

Smoke or CO detectors class A

Leaks class A

Walls, floors and stairs class A

Walls, floors and stairs class A

Show 42 more

Walls, floors and stairs class A · paperwork

PestsApt 4B class C

Fire safetyApt 4B class C

Electrical class B · closed

ElectricalApt 3B class B

ElectricalApt 3B class B

Other conditionsApt 3B class A

ElectricalApt 3B class B

Pests class C

Walls, floors and stairsApt 4B class B

Walls, floors and stairsApt 4B class B

ElectricalApt 4B class B

LeaksApt 4B class B

Other conditionsApt 4B class B

Walls, floors and stairsApt 4B class B

ElectricalApt 4B class B

Fire safety class C · closed

Fire safety class C · closed

Other conditions class I · paperwork · closed

MoldApt 4B class A · closed

Heat or hot waterApt 2A class C · closed

Heat or hot waterApt 4B class C · closed

2024 Apr

Pests class A · paperwork · closed

Doors and windowsApt 2A class C · closed

MoldApt 2A class A · closed

MoldApt 4B class A · closed

MoldApt 4B class A · closed

Fire safety class C · closed

LeaksApt 3A class C · closed

Walls, floors and stairsApt 1A class C · closed

LeaksApt 1A class C · closed

2023 Nov

Other conditions class I · paperwork · closed

and 219 more at the source

Housing Maintenance Code Violations, as of 2026-10-19 · 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

6 open: 1 about building conditions, 5 about filings or paperwork

Local Law 62/91 - Boilers never closed

Local Law 62/91 - Boilers never closed

Local Law 62/91 - Boilers never closed

DOB Violations, as of 2026-10-18 · 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

8 heat or hot water, 5 paint or plaster, 4 doors or windows, 4 plumbing, 4 safety, 3 mold, 3 pests, 2 appliances, 2 floors or stairs, 1 electrical, 1 leaks

2026 Sep

PestsApt 5B

Doors or windowsApt 4B

Appliances, electrical, plumbing, pestsApt 3B

Doors or windows, floors or stairs, paint or plaster, plumbing, safety, mold, pestsApt 4B

2026 Jan

Heat or hot water

Heat or hot waterApt 5A

2025 Oct

Heat or hot waterApt 1B

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

Show 11 more

Appliances, paint or plaster, plumbing, safety, moldApt 4B

Heat or hot waterApt 2A

2024 Dec

Heat or hot waterApt 5A

2024 Feb

Heat or hot waterApt 5A

Housing Maintenance Code Complaints and Problems, as of 2026-10-19 · 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

9 permits since 1990

2012 Jul

Plumbing permit, Boiler permit

2011 Jul

Fire protection permit

2011 Jun

Heating/ventilation permit, Plumbing permit, General construction permit

2011 Apr

General construction permit

1999 Aug

Alteration permit, Plumbing permit

and 4 more at the source

DOB NOW: Build – Approved Permits, as of 2026-10-17 · 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

Other conditions class A · HPD violation

Smoke or CO detectors class A · HPD violation

Smoke or CO detectors class A · HPD violation

Doors or windowsApt 4B complaint

Other conditionsApt 3B class A · HPD violation

Other conditionsApt 4B class B · HPD violation

Show 8 more

AppliancesApt 3B complaint

Doors or windows, floors or stairs, paint or plaster, safetyApt 4B complaint

Other conditions class I · paperwork · closed · HPD violation

Floors or stairs, paint or plasterApt 2A complaint