660 Willoughby Ave

Heat or hot waterApt 3B complaint

Heat or hot water class C · closed · HPD violation

Heat or hot waterApt 6A class C · closed · HPD violation

Heat or hot waterApt 6A class C · closed · HPD violation

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

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

Show 33 more

Heat or hot waterApt 6A class C · closed · HPD violation

Heat or hot waterApt 1A complaint

Heat or hot water class C · closed · HPD violation

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

Heat or hot waterApt 3B complaint

Heat or hot waterApt 3B complaint

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

Heat or hot water class C · closed · HPD violation

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

Heat or hot waterApt 2C complaint

2025 Jan

Heat or hot waterApt 1B complaint

2024 Dec

Heat or hot waterApt 1A complaint

2024 Nov

2024 Sep

2024 Sep

2024 Aug

2024 May

2024 Apr

2024 Feb

Heat or hot waterApt 6D complaint

Heat source

Boiler burning natural gas (Laars PNCH-1500), registration current since Jun 2025

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 Jan 2026, defects reported: yes

DOB NOW: Safety Boiler, as of 2026-10-21 · See the boiler filings at DOB →

What this counts

Accepted annual boiler inspection filings, any date

Boiler work permits

Latest boiler work permit 2017 (4 on record)

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

8 heat or hot water complaints

Housing Maintenance Code Complaints and Problems, as of 2026-10-21 · 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 · 2 complaints, 2026

What has happened here

PlumbingApt 6A class B · HPD violation

2026 Jul

PlumbingApt 2A complaint

Leaks class B · HPD violation

PlumbingApt 3B complaint

2025 Apr

Water service line

Non-Lead (field inspection)

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

Pests and cleanliness

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

What has happened here

MoldApt 4A class A · HPD violation

PestsApt 4A class C · HPD violation

Mold, pestsApt 4A complaint

Unsanitary conditions complaint

Unsanitary conditions complaint

MoldApt 1B complaint

Show 4 more

MoldApt 6A class A · closed · HPD violation

PestsApt 3B class C · closed · HPD violation

PestsApt 3B class C · closed · HPD violation

2025 Jul

PestsApt 6D complaint

Electrical

1 complaint, 2026

What has happened here

ElectricalApt 1B complaint

2024 Apr

Electrical 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

BasementWhole tax lot

Below grade

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

Elevators

Issues on record, most recently 2023

What has happened here

VT-CAT1-CO Elevators DOB violation

VT-PER-CO Elevators DOB violation

Elevators

1 active elevator; latest periodic inspection May 2026

DOB NOW Elevator Safety Compliance, as of 2026-10-21 · See this building's elevators on NYC Open Data →

What this counts

Active elevator devices registered to this building ID

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). Listed under the J-51 tax program, so stabilization can end when the exemption does

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

Energy

ENERGY STAR score 100 (2023 report)

Energy and Water Data Disclosure (Local Law 84), as of 2025-11-25

What this counts

Letter grades are issued by the city under Local Law 33 and posted near the building entrance; Blueflo shows the reported score only

General condition and all records

HPD violations

44 open: 44 about building conditions — doors and windows (12), pests (10), fire safety (8), walls, floors and stairs (7); 17 immediately hazardous (class C). 25 further violations from 2025–2026 were closed. 234 violations on record in all, 2005–2026 — the 102 most recent are listed here

2026 Sep

Fire safety class C

2026 Sep

2026 Sep

MoldApt 4A class A

Walls, floors and stairsApt 4A class B

PestsApt 4A class C

Other conditions class A

Fire safety class C

Show 42 more

PlumbingApt 6A class B

Doors and windowsApt 6A class B

Walls, floors and stairsApt 6A class B

Doors and windowsApt 1A class B

Doors and windowsApt 1B class B

Walls, floors and stairsApt 1B class B

Walls, floors and stairsApt 1B class B

Walls, floors and stairsApt 1B class B

Other conditions class A

Doors and windowsApt 3B class B

Doors and windowsApt 3B class B

Heat or hot water class C · closed

Heat or hot waterApt 6A class C · closed

Heat or hot waterApt 6A class C · closed

Heat or hot waterApt 3B class C · closed

Heat or hot waterApt 3B class C · closed

Fire safetyApt 6A class C

Doors and windowsApt 3B class B

MoldApt 6A class A · closed

Heat or hot waterApt 6A class C · closed

PestsApt 3B class C · closed

Fire safetyApt 3B class C · closed

Doors and windowsApt 3B class B · closed

Other conditionsApt 3B class B · closed

PestsApt 3B class C · closed

Heat or hot water class C · closed

Heat or hot waterApt 3B class C · closed

Fire safety class B

Walls, floors and stairs class A · closed

Fire safetyApt 4C class C · closed

Heat or hot waterApt 4C class C · closed

Heat or hot water class C · closed

Heat or hot waterApt 2C class C · closed

2025 May

Walls, floors and stairsApt 5D class A · closed

2025 Apr

Fire safety class C

2025 Apr

Doors and windowsApt 1A class B

Housing Maintenance Code Violations, as of 2026-10-21 · 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 filings or paperwork

DOB Violations, as of 2026-10-21 · 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

16 heat or hot water, 5 general repairs, 4 doors or windows, 3 paint or plaster, 2 appliances, 2 floors or stairs, 2 mold, 2 pests, 2 plumbing, 2 unsanitary conditions, 1 electrical

Floors or stairs, mold, pestsApt 4A

2026 Jul

PlumbingApt 2A

Unsanitary conditions

2026 May

General repairsApt 3B

Unsanitary conditions

Appliances, doors or windows, electrical, general repairs, paint or plaster, moldApt 1B

General repairsApt 3B

Heat or hot waterApt 3B

Show 30 more

PlumbingApt 3B

Heat or hot waterApt 1A

Doors or windows, floors or stairs, general repairsApt 3B

Heat or hot waterApt 3B

Doors or windows, heat or hot waterApt 3B

Appliances, doors or windows, heat or hot water, paint or plasterApt 1B

Heat or hot waterApt 2C

2025 Jul

PestsApt 6D

2025 Jan

2024 Dec

General repairs, heat or hot waterApt 1A

2024 Nov

General repairsApt 1A

2024 Sep

Heat or hot waterApt 6D

Plumbing permit, Boiler permit

Housing Maintenance Code Complaints and Problems, as of 2026-10-21 · 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

6 permits since 1990

2017 May

2001 Dec

General construction permit, Boiler permit

2000 Dec

Alteration permit, Plumbing permit

and 3 more at the source

DOB NOW: Build – Approved Permits, as of 2026-10-21 · 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

Floors or stairsApt 4A complaint

Other conditions class A · HPD violation

Other conditions class A · HPD violation

2026 May

General repairsApt 3B complaint

Appliances, doors or windows, general repairs, paint or plasterApt 1B complaint

General repairsApt 3B complaint

Show 6 more

Other conditionsApt 3B class B · closed · HPD violation

Doors or windows, floors or stairs, general repairsApt 3B complaint

Doors or windowsApt 3B complaint

2025 Jan

Appliances, doors or windows, paint or plasterApt 1B complaint

2024 Dec

General repairsApt 1A complaint