681 Classon Ave

Walls, floors and stairsApt 2L class A · HPD violation

Walls, floors and stairsApt 2L class A · HPD violation

Walls, floors and stairsApt 1L class B · HPD violation

Walls, floors and stairs class B · closed · HPD violation

Walls, floors and stairsApt 1L class A · closed · HPD violation

Walls, floors and stairsApt 1L class A · closed · HPD violation

Show 3 more

Walls, floors and stairsApt 1L class A · closed · HPD violation

Doors and windowsApt 1L class B · closed · HPD violation

General construction permit

Facade ratingnot requiredNot required: facade inspections apply only to buildings taller than 6 stories
Sidewalk shed and scaffoldingno recordNo sidewalk shed permits on record
Landmark statusno recordNot in a historic district on record

Heat and hot water

Issues on record · 31 complaints, 2024–2026 · 15 in the past year

What has happened here

2026 Apr

2026 Apr

2026 Apr

Show 29 more

2025 Dec

2025 Dec

Heat or hot waterApt 1L class C · closed · HPD violation

2025 Apr

2025 Mar

2024 Dec

2024 Dec

2023 Nov

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

1993 Aug

Boiler inspection filings

Latest accepted inspection Dec 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

18 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

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

What has happened here

2026 May

2025 Sep

Show 3 more

PlumbingApt 1L class A · closed · HPD violation

PlumbingApt 1L class B · closed · HPD violation

Plumbing permit

Water service line

Non-Lead (statistical analysis/predictive model)

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

Pests and cleanliness

Issues on record · 19 complaints, 2025–2026 · 3 in the past year

What has happened here

2026 Oct

2026 Sep

PestsApt 4R class C · HPD violation

PestsApt 4R class C · HPD violation

Unsanitary conditions, pests complaint

Show 24 more

2025 Sep

PestsApt 1 complaint

2025 Aug

2025 Aug

Unsanitary conditionsApt 2L complaint

2025 Aug

Rubbish and cleanliness class B · closed · HPD violation

Pests complaint

2025 Jun

Pests complaint

2025 Jun

2025 Jun

PestsApt 2L complaint

PestsApt 2L complaint

Pests complaint

Unsanitary conditions, pestsApt 2L complaint

2024 Jun

2024 May

Unsanitary conditions, pestsApt 2L complaint

2024 May

PestsApt 1L class C · closed · HPD violation

2018 Jul

MoldApt 2L class B · HPD violation

Fire and safety

Older records on file

What has happened here

Fire safety class C · closed · HPD violation

Fire safety class C · closed · HPD violation

Lead-based paintApt 3L class C · HPD violation

Electrical

6 complaints, 2026

What has happened here

ElectricalApt 4R complaint

ElectricalApt 2L complaint

Electrical complaint

ElectricalApt 2L 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

General condition and all records

HPD violations

9 open: 9 about building conditions — walls, floors and stairs (3), other conditions (2), pests (2), lead-based paint (1); 3 immediately hazardous (class C). 12 further violations from 2023–2026 were closed. 285 violations on record in all, 1988–2026 — the 21 most recent are listed here

Walls, floors and stairsApt 2L class A

Walls, floors and stairsApt 2L class A

Walls, floors and stairsApt 1L class B

Other conditions class A

Other conditions class A

Fire safety class C · closed

Show 13 more

Heat or hot waterApt 1L class C · closed

Walls, floors and stairs class B · closed

Rubbish and cleanliness class B · closed

Fire safety class C · closed

PestsApt 1L class C · closed

Walls, floors and stairsApt 1L class A · closed

Walls, floors and stairsApt 1L class A · closed

Walls, floors and stairsApt 1L class A · closed

Doors and windowsApt 1L class B · closed

PlumbingApt 1L class A · closed

PlumbingApt 1L class B · closed

2018 Jul

MoldApt 2L class B

Lead-based paintApt 3L 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

1 open: 1 about filings or paperwork

1993 Aug

Local Law 62/91 - Boilers never closed

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

31 heat or hot water, 15 unsanitary conditions, 6 electrical, 6 plumbing, 5 pests, 2 doors or windows, 2 floors or stairs, 2 general repairs, 1 paint or plaster

2026 Oct

Unsanitary conditions

2026 Sep

Unsanitary conditions

PlumbingApt 2L

Floors or stairsApt 1L

Paint or plaster, unsanitary conditions, pests