667 Classon Ave

Fire safetyApt 2B class B · HPD violation

Fire safetyApt 1A class C · closed · HPD violation

Fire safetyApt 3B class C · closed · HPD violation

Fire safetyApt 4B class C · closed · HPD violation

Fire safety class B · closed · HPD violation

Structure and facade

Issues on record

What has happened here

Doors and windowsApt 2B class A · HPD violation

Doors and windowsApt 2B class B · HPD violation

Walls, floors and stairsApt 2A class B · closed · HPD violation

Walls, floors and stairsApt 2A class B · closed · HPD violation

2020 Feb

Construction class - 2 · DOB violation

2019 Feb

Construction class - 2 · DOB violation

Show 3 more

2018 Oct

General construction permit

2017 Nov

General construction permit

1998 Mar

Construction fence permit, Alteration permit

Facade ratingnot requiredNot required: facade inspections apply only to buildings taller than 6 stories
Sidewalk shed and scaffoldingfoundNo active shed permit
Landmark statusno recordNot in a historic district on record

Heat and hot water

Issues on record · 25 complaints, 2024–2026 · 16 in the past year

What has happened here

Heat or hot waterApt 3A complaint

2026 Jun

Heat or hot waterApt 1A complaint

Heat or hot waterApt 1A class C · HPD violation

Show 39 more

Heat or hot waterApt 3B class C · closed · HPD violation

Heat or hot waterApt 1A complaint

Heat or hot waterApt 3A complaint

Heat or hot waterApt 4B complaint

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

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

Heat or hot waterApt 4B complaint

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

2025 May

2025 Apr

2025 Mar

Heat or hot waterApt 2A class C · HPD violation

2025 Jan

2024 Oct

Heat or hot waterApt 2A complaint

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

Heat or hot waterApt 2A complaint

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

Heat or hot waterApt 2A class C · HPD violation

Heat or hot waterApt 2A complaint

Heating/ventilation permit

2017 Nov

Boiler inspection filings

Latest accepted inspection Mar 2025, defects reported: no

DOB NOW: Safety Boiler, as of 2026-10-19 · See the boiler filings at DOB →

What this counts

Accepted annual boiler inspection filings, any date

Heat and hot water complaints

13 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)

Heat sourceno recordNo boiler registration or district steam on record
Boiler work permitsno recordNo boiler work permits on record

Water and pipes

5 complaints, 2025–2026 · 4 in the past year

What has happened here

2026 Oct

LeaksApt 4B complaint

2026 Oct

LeaksApt 4B complaint

PlumbingApt 3B complaint

PlumbingApt 2B complaint

LeaksApt 3B complaint

PlumbingApt 2A complaint

Show 3 more

Water service line

Non-Lead (records)

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

Pests and cleanliness

2 complaints, 2025–2026 · 1 in the past year

What has happened here

Unsanitary conditions, pestsApt 2B complaint

2025 Jan

PestsApt 3D complaint

PestsApt 2A class C · closed · HPD violation

PestsApt 2A complaint

Electrical

1 complaint, 2026

What has happened here

ElectricalApt 2B complaint

ElectricalApt 2A class B · closed · HPD violation

ElectricalApt 2A class B · closed · HPD violation

ElectricalApt 2A class B · closed · HPD violation

ElectricalApt 2A 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 2026-10-20

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

BasementWhole tax lot

Below grade

PLUTO (tax lot data), as of 2026-08-24

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

Gas

What has happened here

GasApt 2B class B · HPD violation

GasApt 2A class A · closed · HPD violation

Gas pipingno recordNo open gas piping filing violations. Inspection results themselves are not published

General condition and all records

HPD violations

11 open: 11 about building conditions — heat or hot water (3), doors and windows (2), other conditions (2), smoke or CO detectors (2); 4 immediately hazardous (class C). 25 further violations from 2024–2026 were closed. 94 violations on record in all, 2014–2026 — the 39 most recent are listed here

Doors and windowsApt 2B class A

Fire safetyApt 2B class B

Smoke or CO detectorsApt 2B class B

Smoke or CO detectorsApt 2B class B

GasApt 2B class B

Other conditionsApt 2B class C

Heat or hot waterApt 1A class C

Fire safetyApt 1A class C · closed

Show 28 more

Smoke or CO detectorsApt 1A class B · closed

Smoke or CO detectorsApt 1A class B · closed

Fire safetyApt 3B class C · closed

Heat or hot waterApt 3B class C · closed

Fire safetyApt 4B class C · closed

Heat or hot waterApt 4B class C · closed

Smoke or CO detectorsApt 4B class B · closed

Smoke or CO detectorsApt 4B class B · closed

Heat or hot waterApt 4B class C · closed

Doors and windowsApt 2B class B

Heat or hot waterApt 2B class C · closed

Heat or hot waterApt 2A class C

Other conditions class B

2025 Jan

Fire safety class B · closed

Heat or hot waterApt 2A class C · closed

ElectricalApt 2A class B · closed

ElectricalApt 2A class B · closed

Heat or hot waterApt 2A class C · closed

GasApt 2A class A · closed

Walls, floors and stairsApt 2A class B · closed

ElectricalApt 2A class B · closed

Walls, floors and stairsApt 2A class B · closed

PestsApt 2A class C · closed

Heat or hot waterApt 2A class C

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

2 open: 2 about building conditions

2020 Feb

Construction class - 2

2019 Feb

Construction class - 2

DOB Violations, as of 2026-10-19 · 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

25 heat or hot water, 3 leaks, 3 plumbing, 2 doors or windows, 2 pests, 1 appliances, 1 electrical, 1 general repairs, 1 unsanitary conditions

Doors or windows, electrical, unsanitary conditions, pestsApt 2B

Appliances, general repairs, plumbingApt 2B

Heat or hot waterApt 3A

Show 31 more

2026 Jun

Heat or hot waterApt 1A

Heat or hot waterApt 1A

Heat or hot waterApt 3A

Doors or windows, heat or hot waterApt 4B

Heat or hot waterApt 4B

LeaksApt 3B

2025 May

2025 Apr

Heat or hot waterApt 2A

Heat or hot waterApt 2A

Appliances, electrical, floors or stairs, paint or plaster, plumbing, pestsApt 2A

Heat or hot waterApt 2A

Plumbing permit, General construction permit

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

8 permits since 1990

2018 Oct

2018 Sep

Plumbing permit, Heating/ventilation permit, General construction permit

1998 Mar

Construction fence permit, Alteration permit, Plumbing permit

and 5 more at the source

DOB NOW: Build – Approved Permits, as of 2026-10-19 · 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

Smoke or CO detectorsApt 2B class B · HPD violation

Smoke or CO detectorsApt 2B class B · HPD violation

Other conditionsApt 2B class C · HPD violation

Doors or windowsApt 2B complaint

Appliances, general repairsApt 2B complaint

Smoke or CO detectorsApt 1A class B · closed · HPD violation

Show 6 more

Smoke or CO detectorsApt 1A class B · closed · HPD violation

Doors or windowsApt 4B complaint

Smoke or CO detectorsApt 4B class B · closed · HPD violation

Smoke or CO detectorsApt 4B class B · closed · HPD violation

Other conditions class B · HPD violation