Building health · BROOKLYN, NY

806 42 St

built 1915 · 4 stories · 7 apartments
Also known as 4201 8 Ave — one building, several doors.
Registered with the city: LAY HING REALTY CORP

Apartments named in these records

Apt 2L 1Apt 3 6Apt 7 12

3 of this building’s 7 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.

Heat and hot water

Older records on file
What has happened here
2012 Jan
Heat or hot waterApt 2L class C · never closed · HPD violation
2012 Jan
Heat or hot water class C · never closed · HPD violation
2012 Jan
Heat or hot water class C · paperwork · never closed · HPD violation
1998 May
Local Law 62/91 - Boilers never closed · DOB violation
1997 Feb
Local Law 62/91 - Boilers never closed · DOB violation
1995 Aug
Local Law 62/91 - Boilers never closed · DOB violation
Show 1 more
1993 Aug
Local Law 62/91 - Boilers never closed · DOB violation
Heat source

Boiler burning natural gas (Weil-Mclain EGH-85S), registration current since Mar 2025

Clean Air Tracking System (boiler registrations), as of 2026-10-20 · See this building's boiler registrations on NYC Open Data →
Boiler inspection filings

Latest accepted inspection Mar 2026, 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

  • Boiler work permitsno recordNo boiler work permits on record
  • Heat and hot water complaintsfound0 heat or hot water complaints

Water and pipes

Older records on file
What has happened here
1996 Sep
LeaksApt 7 class B · never closed · HPD violation
1996 Sep
LeaksApt 7 class B · never closed · HPD violation
1994 Aug
PlumbingApt 3 class B · never closed · HPD violation
1994 Aug
LeaksApt 3 class B · never closed · HPD violation
1994 Aug
PlumbingApt 3 class B · never 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, most recently 2023
What has happened here
2026 Apr
Pests class A · paperwork · closed · HPD violation
2025 Jun
Pests class A · paperwork · closed · HPD violation
2024 Apr
Pests class A · paperwork · closed · HPD violation
2023 May
Rubbish and cleanliness class B · HPD violation
2023 May
Rubbish and cleanliness class B · HPD violation
1992 Oct
PestsApt 7 class B · never closed · HPD violation

Fire and safety

Older records on file
What has happened here
1996 Sep
Fire safetyApt 7 class B · never closed · HPD violation
1994 Aug
Fire safetyApt 3 class B · never closed · HPD violation
1992 Oct
Fire safetyApt 7 class B · never closed · HPD violation

Electrical

Older records on file
What has happened here
1992 Oct
ElectricalApt 7 class B · never closed · HPD violation

Structure and facade

Older records on file
What has happened here
2008 Apr
Walls, floors and stairs class B · never closed · HPD violation
1996 Sep
Doors and windowsApt 7 class B · never closed · HPD violation
1996 Sep
Walls, floors and stairsApt 7 class B · never closed · HPD violation
1996 Sep
Walls, floors and stairsApt 7 class B · never closed · HPD violation
1996 Sep
Walls, floors and stairsApt 7 class B · never closed · HPD violation
1994 Aug
Walls, floors and stairsApt 3 class B · never closed · HPD violation
Show 4 more
1992 Oct
Walls, floors and stairsApt 7 class B · never closed · HPD violation
1992 Oct
Doors and windowsApt 7 class B · never closed · HPD violation
1991 Mar
Construction non-hazardous · never closed · DOB violation
1991 Mar
Construction never closed · DOB violation
  • 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

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

  • BasementfoundNo basement

General condition and all records

HPD violations

2 open: 2 about building conditions — rubbish and cleanliness (2). Also 43 older records from 1988–2012 never closed. 6 further violations from 2023–2026 were closed. 61 violations on record in all, 1988–2026 — the 51 most recent are listed here

2026 Apr
Pests class A · paperwork · closed
2025 Nov
Other conditions class I · paperwork · closed
2025 Jun
Pests class A · paperwork · closed
2024 Nov
Other conditions class I · paperwork · closed
2024 Apr
Pests class A · paperwork · closed
2023 Nov
Other conditions class I · paperwork · closed
2023 May
Rubbish and cleanliness class B
2023 May
Rubbish and cleanliness class B
Show 23 more
2012 Jan
Heat or hot waterApt 2L class C · never closed
2012 Jan
Heat or hot water class C · never closed
2012 Jan
Heat or hot water class C · paperwork · never closed
2008 Apr
Walls, floors and stairs class B · never closed
1996 Sep
Other conditions class B · never closed
1996 Sep
Doors and windowsApt 7 class B · never closed
1996 Sep
Walls, floors and stairsApt 7 class B · never closed
1996 Sep
Walls, floors and stairsApt 7 class B · never closed
1996 Sep
LeaksApt 7 class B · never closed
1996 Sep
LeaksApt 7 class B · never closed
1996 Sep
Fire safetyApt 7 class B · never closed
1996 Sep
Walls, floors and stairsApt 7 class B · never closed
1994 Aug
Smoke or CO detectorsApt 3 class B · never closed
1994 Aug
Fire safetyApt 3 class B · never closed
1994 Aug
Walls, floors and stairsApt 3 class B · never closed
1994 Aug
PlumbingApt 3 class B · never closed
1994 Aug
LeaksApt 3 class B · never closed
1994 Aug
PlumbingApt 3 class B · never closed
1992 Oct
Walls, floors and stairsApt 7 class B · never closed
1992 Oct
ElectricalApt 7 class B · never closed
1992 Oct
Fire safetyApt 7 class B · never closed
1992 Oct
PestsApt 7 class B · never closed
1992 Oct
Doors and windowsApt 7 class B · never closed
and 14 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: 4 about filings or paperwork, 2 older than 10 years

1998 May
Local Law 62/91 - Boilers never closed
1997 Feb
Local Law 62/91 - Boilers never closed
1995 Aug
Local Law 62/91 - Boilers never closed
1993 Aug
Local Law 62/91 - Boilers never closed
1991 Mar
Construction non-hazardous · never closed
1991 Mar
Construction 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

Everything else on record
2025 Nov
Other conditions class I · paperwork · closed · HPD violation
2024 Nov
Other conditions class I · paperwork · closed · HPD violation
2023 Nov
Other conditions class I · paperwork · closed · HPD violation
1996 Sep
Other conditions class B · never closed · HPD violation
1994 Aug
Smoke or CO detectorsApt 3 class B · never closed · HPD violation
  • Resident complaints to the cityfoundno complaints
  • Permit historyno record0 permits since 1990

Nothing on record

Rent and tenancyNot on the state list
  • Rent stabilizationno recordNot on the state's 2024 list. Owners who register late or not at all are missing, so ask HCR about a specific apartment
Gasno record
  • Gas pipingno recordNo open gas piping filing violations. Inspection results themselves are not published
Energyno record
  • Energynot requiredNot required: energy reporting applies to buildings over 25,000 sq ft
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.

Every row shows the record it came from and the date it was last checked.
These are city records, not an inspection by Blueflo. Every item shows its source and the date it was last checked.
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Not an inspection and not a warranty. May not be used for tenant screening — terms of use · privacy.
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