Building record from city data · BROOKLYN, NY

666 Hancock St

Printed 2026-10-21 from blueflo.tech/b/666-hancock-street-brooklyn, where it is kept current. These are city records, not an inspection by Blueflo. Every item shows its source and the date it was last checked. Not a warranty. May not be used for tenant screening (terms of use).

built 1930 · 4 stories · 41 apartments · BIN 3046208 · BBL 3016620012

Worth knowing
10 open immediately hazardous (class C) HPD violations about pests and fire safety and gas and heat or hot water and mold and walls, floors and stairs
Source: Housing Maintenance Code Violations · as of 2026-10-20
Worth knowing
Also on record
Clean in the records
Registered with the city

WILSON HAN ASSOCIATES INC

Heat or hot water: 16 reports to the city since 2024
2024Heat or hot water · Feb 2024 · 2 reports (3 complaints)Feb 6, 2024Feb 22, 2024Feb 25, 2024Heat or hot water · Oct 2024 · 1 report (1 complaint)Oct 15, 2024
2025Heat or hot water · Jan 2025 · 2 reports (3 complaints)Jan 5, 2025Jan 8, 2025Jan 21, 2025Heat or hot water · Feb 2025 · 1 report (2 complaints)Feb 18, 2025Feb 21, 2025Heat or hot water · Oct 2025 · 1 report (1 complaint)Oct 16, 2025Heat or hot water · Dec 2025 · 2 reports (5 complaints)Dec 5, 2025Dec 8, 2025Dec 10, 2025Dec 12, 2025Dec 31, 2025
2026Heat or hot water · Jan 2026 · 2 reports (7 complaints)Jan 14, 2026Jan 14, 2026 (2nd)Jan 18, 2026Jan 18, 2026 (2nd)Jan 20, 2026Jan 21, 2026Jan 24, 2026Heat or hot water · Feb 2026 · 1 report (2 complaints)Feb 6, 2026Feb 7, 2026Heat or hot water · Apr 2026 · 1 report (1 complaint)Apr 23, 2026Heat or hot water · May 2026 · 2 reports (2 complaints)May 3, 2026May 11, 2026Heat or hot water · Oct 2026 · 1 report (2 complaints)Oct 6, 2026Oct 11, 2026
Source: HPD Complaints and Problems · as of 2026-10-21

Also reported

2024 – 2026

A filled month had a report to HPD; darker means more than one, and the past year is brightest. Tap one to read it. Complaints within a week count as one report. Records list complaints filed, not conditions found.

Apartments named in these records

Apt 1B 4Apt 1C 1Apt 2B 3Apt 2D 3Apt 2K 8Apt 3A 1Apt 3D 6Apt 3H 2Apt 3J 18Apt 3X 1Apt 4A 2Apt 4B 2Apt 4F 3Apt 4H 39Apt 4K 1Apt 4X 2Apt 6H 4

17 of this building’s 41 apartments are named in a city record. The rest have no record naming them, which is the usual case.

These are city records about an apartment, not about anyone who lives or lived there. They may not be used to screen a tenant.

Fire and safety

Issues on record
What has happened here
2026 Oct
Fire safety class C · HPD violation
2026 Oct
Fire safetyApt 4F class C · HPD violation
2026 Feb
Fire safetyApt 4F class C · closed · HPD violation
2026 Jan
Fire safetyApt 2K class C · closed · HPD violation

Structure and facade

Issues on record
What has happened here
2026 Jun
Walls, floors and stairsApt 4H class A · closed · HPD violation
2026 Jun
Walls, floors and stairsApt 4H class B · closed · HPD violation
2026 Apr
Doors and windows class C · closed · HPD violation
2026 Apr
Walls, floors and stairs class A · closed · HPD violation
2026 Feb
Walls, floors and stairsApt 3J class B · closed · HPD violation
2026 Jan
Structure and facade class I · HPD violation
Show 9 more
2026 Jan
Walls, floors and stairsApt 4H class C · HPD violation
2026 Jan
Structure and facade class I · closed · HPD violation
2026 Jan
Structure and facade class I · closed · HPD violation
2025 Dec
Structure and facade class C · closed · HPD violation
2025 Dec
Walls, floors and stairsApt 4X class B · closed · HPD violation
2025 Dec
Doors and windowsApt 4X class C · closed · HPD violation
2025 Dec
Walls, floors and stairsApt 2K class B · closed · HPD violation
2025 Oct
Doors and windows class B · HPD violation
2018 Nov
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 (2024) · 25 complaints, 2025–2026 · 19 in the past year
What has happened here
2026 Oct
Heat or hot water complaint
2026 Oct
Heat or hot water complaint
2026 May
Heat or hot waterApt 4H complaint
2026 May
Heat or hot water complaint
2026 Apr
Heat or hot water complaint
2026 Feb
Heat or hot waterApt 3J class C · closed · HPD violation
Show 32 more
2026 Feb
Heat or hot water complaint
2026 Feb
Heat or hot waterApt 4H complaint
2026 Jan
Heat or hot water complaint
2026 Jan
Heat or hot waterApt 4H class C · closed · HPD violation
2026 Jan
Heat or hot water complaint
2026 Jan
Heat or hot water complaint
2026 Jan
Heat or hot waterApt 4H complaint
2026 Jan
Heat or hot water complaint
2026 Jan
Heat or hot water complaint
2026 Jan
Heat or hot waterApt 4H complaint
2025 Dec
Heat or hot waterApt 4H complaint
2025 Dec
Heat or hot waterApt 4H complaint
2025 Dec
Heat or hot water complaint
2025 Dec
Heat or hot water complaint
2025 Dec
Heat or hot water complaint
2025 Oct
Heat or hot waterApt 4A complaint
2025 Feb
Heat or hot waterApt 3J complaint
2025 Feb
Heat or hot water complaint
2025 Jan
Heat or hot water complaint
2025 Jan
Heat or hot waterApt 4H complaint
2025 Jan
Heat or hot waterApt 3J complaint
2024 Oct
Heat or hot water class C · HPD violation
2024 Oct
Heat or hot waterApt 3J complaint
2024 Feb
Heat or hot water complaint
2024 Feb
Heat or hot water complaint
2024 Feb
Heat or hot waterApt 4H complaint
2023 Nov
Heat or hot waterApt 1C complaint
2023 Nov
BE-EXT-LP Boiler DOB violation
2012 Jun
Fuel burning permit
1997 Sep
Local Law 62/91 - Boilers never closed · DOB violation
1993 Aug
Local Law 62/91 - Boilers never closed · DOB violation
1991 Nov
Fuel burning permit, Boiler permit
Heat source

Boiler burning natural gas (Federal FST-60), registration current since Jun 2024

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 Sep 2026, defects reported: no

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 1991

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

19 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

20 complaints, 2024–2026 · 10 in the past year
What has happened here
2026 May
LeaksApt 4H complaint
2026 May
Plumbing complaint
2026 Apr
Plumbing complaint
2026 Apr
Plumbing complaint
2026 Feb
LeaksApt 3J class B · closed · HPD violation
2026 Feb
PlumbingApt 4B complaint
Show 19 more
2026 Feb
LeaksApt 3J complaint
2026 Jan
Plumbing complaint
2026 Jan
PlumbingApt 4B complaint
2025 Dec
LeaksApt 2K complaint
2025 Oct
LeaksApt 1B complaint
2025 Aug
Leaks complaint
2025 Aug
LeaksApt 4H complaint
2025 Jul
LeaksApt 4H complaint
2025 Jul
LeaksApt 2K complaint
2025 Jun
LeaksApt 4H complaint
2025 Apr
LeaksApt 1B complaint
2025 Mar
LeaksApt 3J complaint
2025 Jan
LeaksApt 2K complaint
2025 Jan
PlumbingApt 4H complaint
2024 Dec
LeaksApt 2K complaint
2024 Sep
LeaksApt 2K complaint
2024 Mar
Plumbing complaint
2024 Jan
LeaksApt 3H complaint
2012 Jun
Plumbing permit
Water service lineWhole tax lot

Non-Lead (field inspection)

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

Pests and cleanliness

Issues on record · 6 complaints, 2025–2026 · 3 in the past year
What has happened here
2026 Jun
PestsApt 3X complaint
2026 Jun
PestsApt 4H class C · closed · HPD violation
2026 Jun
PestsApt 4H class C · closed · HPD violation
2026 Jun
MoldApt 4H class A · closed · HPD violation
2026 Mar
Unsanitary conditionsApt 2B complaint
2026 Feb
MoldApt 3J class C · HPD violation
Show 9 more
2026 Feb
MoldApt 3J complaint
2026 Jan
Pests class C · HPD violation
2026 Jan
Rubbish and cleanliness class B · closed · HPD violation
2025 Oct
PestsApt 4A class C · HPD violation
2025 Aug
PestsApt 6H complaint
2025 Apr
MoldApt 2D complaint
2025 Jan
Unsanitary conditions, pestsApt 4H complaint
2024 Oct
PestsApt 3J class C · HPD violation
2024 Apr
Unsanitary conditions, mold, pestsApt 3D complaint

Electrical

2 complaints, 2026
What has happened here
2026 Oct
ElectricalApt 4H complaint
2026 Feb
ElectricalApt 3J class B · closed · HPD violation
2026 Feb
ElectricalApt 3J complaint
2024 Oct
ElectricalApt 3J complaint
2024 Oct
ElectricalApt 3J complaint
2024 May
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

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
2025 Sep
GasApt 4H class B · HPD violation
2025 Aug
GasApt 4H class B · HPD violation
2025 Aug
GasApt 4H class B · HPD violation
2021 Sep
GasApt 4H class C · HPD violation
2016 Nov
GasApt 3A class C · HPD violation
  • Gas pipingno recordNo open gas piping filing violations. Inspection results themselves are not published

Energy

Energy

ENERGY STAR score 16 (2024 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

18 open: 18 about building conditions — gas (5), pests (3), fire safety (2), smoke or CO detectors (2); 10 immediately hazardous (class C). 25 further violations from 2025–2026 were closed. 941 violations on record in all, 1992–2026 — the 121 most recent are listed here

2026 Oct
Other conditions class B
2026 Oct
Fire safety class C
2026 Oct
Fire safetyApt 4F class C
2026 Jun
PestsApt 4H class C · closed
2026 Jun
PestsApt 4H class C · closed
2026 Jun
Smoke or CO detectorsApt 4H class B · closed
2026 Jun
Smoke or CO detectorsApt 4H class B · closed
2026 Jun
Other conditionsApt 4H class A · closed
Show 35 more
2026 Jun
Walls, floors and stairsApt 4H class A · closed
2026 Jun
MoldApt 4H class A · closed
2026 Jun
Walls, floors and stairsApt 4H class B · closed
2026 Apr
Doors and windows class C · closed
2026 Apr
Walls, floors and stairs class A · closed
2026 Feb
MoldApt 3J class C
2026 Feb
Fire safetyApt 4F class C · closed
2026 Feb
Heat or hot waterApt 3J class C · closed
2026 Feb
Walls, floors and stairsApt 3J class B · closed
2026 Feb
LeaksApt 3J class B · closed
2026 Feb
ElectricalApt 3J class B · closed
2026 Jan
Structure and facade class I
2026 Jan
Smoke or CO detectorsApt 4H class B
2026 Jan
Smoke or CO detectorsApt 4H class B
2026 Jan
Heat or hot waterApt 4H class C · closed
2026 Jan
Walls, floors and stairsApt 4H class C
2026 Jan
Fire safetyApt 2K class C · closed
2026 Jan
Structure and facade class I · closed
2026 Jan
Structure and facade class I · closed
2026 Jan
Pests class C
2026 Jan
Rubbish and cleanliness class B · closed
2026 Jan
Other conditions class B · closed
2025 Dec
Structure and facade class C · closed
2025 Dec
Walls, floors and stairsApt 4X class B · closed
2025 Dec
Doors and windowsApt 4X class C · closed
2025 Dec
Walls, floors and stairsApt 2K class B · closed
2025 Oct
Doors and windows class B
2025 Oct
PestsApt 4A class C
2025 Sep
GasApt 4H class B
2025 Aug
GasApt 4H class B
2025 Aug
GasApt 4H class B
2024 Oct
Heat or hot water class C
2024 Oct
PestsApt 3J class C
2021 Sep
GasApt 4H class C
2016 Nov
GasApt 3A class C
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

5 open: 5 about filings or paperwork

2026 Jun
EN-LL97321 GHG Emissions - LL97
2023 Dec
Failure To Post Energy Grade/Score
2023 Nov
BE-EXT-LP Boiler
1997 Sep
Local Law 62/91 - Boilers never closed
1993 Aug
Local Law 62/91 - Boilers 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

25 heat or hot water, 13 leaks, 9 paint or plaster, 7 plumbing, 3 doors or windows, 3 general repairs, 3 pests, 2 appliances, 2 electrical, 2 mold, 2 unsanitary conditions, 1 floors or stairs

2026 Oct
Heat or hot water
2026 Oct
ElectricalApt 4H
2026 Oct
Heat or hot water
2026 Jun
PestsApt 3X
2026 May
Heat or hot water, paint or plaster, leaksApt 4H
2026 May
Plumbing
2026 May
Heat or hot water
2026 May
Doors or windowsApt 4K
Show 56 more
2026 Apr
Heat or hot water
2026 Apr
Plumbing
2026 Apr
Plumbing
2026 Mar
General repairsApt 2B
2026 Mar
Doors or windows, unsanitary conditionsApt 2B
2026 Feb
PlumbingApt 4B
2026 Feb
Electrical, paint or plaster, mold, leaksApt 3J
2026 Feb
Heat or hot water
2026 Feb
Heat or hot waterApt 4H
2026 Jan
Heat or hot water
2026 Jan
Heat or hot water
2026 Jan
Heat or hot water
2026 Jan
Heat or hot waterApt 4H
2026 Jan
Heat or hot water, plumbing
2026 Jan
PlumbingApt 4B
2026 Jan
Heat or hot water
2026 Jan
Appliances, heat or hot water, paint or plasterApt 4H
2025 Dec
Heat or hot waterApt 4H
2025 Dec
LeaksApt 2K
2025 Dec
Heat or hot waterApt 4H
2025 Dec
Heat or hot water
2025 Dec
Heat or hot water
2025 Dec
Heat or hot water
2025 Oct
Appliances, leaksApt 1B
2025 Oct
Heat or hot waterApt 4A
2025 Aug
Floors or stairs, paint or plaster, pestsApt 6H
2025 Aug
Leaks
2025 Aug
Paint or plaster, leaksApt 4H
2025 Jul
General repairsApt 4H
2025 Jul
LeaksApt 4H
2025 Jul
LeaksApt 2K
2025 Jun
LeaksApt 4H
2025 Apr
Doors or windows, paint or plaster, moldApt 2D
2025 Apr
Paint or plaster, leaksApt 1B
2025 Mar
LeaksApt 3J
2025 Feb
Heat or hot waterApt 3J
2025 Feb
Heat or hot water
2025 Jan
Heat or hot water
2025 Jan
LeaksApt 2K
2025 Jan
Unsanitary conditions, pestsApt 4H
2025 Jan
General repairs, heat or hot water, paint or plaster, plumbingApt 4H
2025 Jan
Heat or hot waterApt 3J
2024 Dec
LeaksApt 2K
2024 Oct
Electrical, heat or hot water, paint or plasterApt 3J
2024 Oct
Doors or windows, electricalApt 3J
2024 Sep
Paint or plaster, leaksApt 2K
2024 May
Electrical
2024 Apr
Floors or stairs, paint or plaster, safety, unsanitary conditions, mold, pestsApt 3D
2024 Mar
Plumbing
2024 Mar
AppliancesApt 4F
2024 Feb
Heat or hot water
2024 Feb
Heat or hot water
2024 Feb
Heat or hot waterApt 4H
2024 Jan
SafetyApt 3H
2024 Jan
LeaksApt 3H
2023 Nov
Heat or hot waterApt 1C
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

5 permits since 1990

2018 Nov
General construction permit
2012 Jun
Plumbing permit, Fuel burning permit
1991 Nov
Fuel burning permit, Boiler permit
and 2 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
2026 Oct
Other conditions class B · HPD violation
2026 Jun
EN-LL97321 GHG Emissions - LL97 DOB violation
2026 Jun
Smoke or CO detectorsApt 4H class B · closed · HPD violation
2026 Jun
Smoke or CO detectorsApt 4H class B · closed · HPD violation
2026 Jun
Other conditionsApt 4H class A · closed · HPD violation
2026 May
Paint or plasterApt 4H complaint
Show 22 more
2026 May
Doors or windowsApt 4K complaint
2026 Mar
General repairsApt 2B complaint
2026 Mar
Doors or windowsApt 2B complaint
2026 Feb
Paint or plasterApt 3J complaint
2026 Jan
Smoke or CO detectorsApt 4H class B · HPD violation
2026 Jan
Smoke or CO detectorsApt 4H class B · HPD violation
2026 Jan
Appliances, paint or plasterApt 4H complaint
2026 Jan
Other conditions class B · closed · HPD violation
2025 Oct
AppliancesApt 1B complaint
2025 Aug
Floors or stairs, paint or plasterApt 6H complaint
2025 Aug
Paint or plasterApt 4H complaint
2025 Jul
General repairsApt 4H complaint
2025 Apr
Doors or windows, paint or plasterApt 2D complaint
2025 Apr
Paint or plasterApt 1B complaint
2025 Jan
General repairs, paint or plasterApt 4H complaint
2024 Oct
Paint or plasterApt 3J complaint
2024 Oct
Doors or windowsApt 3J complaint
2024 Sep
Paint or plasterApt 2K complaint
2024 Apr
Floors or stairs, paint or plaster, safetyApt 3D complaint
2024 Mar
AppliancesApt 4F complaint
2024 Jan
SafetyApt 3H complaint
2023 Dec
Failure To Post Energy Grade/Score DOB violation

Nothing on record

ElevatorsNot applicable
  • Elevatorsnot requiredNo elevators registered to this building

Sources

23 datasets

FEMA

NYC DCP

NYC DEP

NYC DEP / Mayor's Office

NYC DOB

NYC DOB / Mayor's Office

NYC HPD

NYC OTI

NYC Rent Guidelines Board / NYS HCR

Each date is when we last checked that dataset, not when the record itself was created.