Building record from city data · BROOKLYN, NY

784 4 Ave

Printed 2026-10-21 from blueflo.tech/b/784-4-avenue-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 1910 · 3 stories · 35 apartments · BIN 3009658 · BBL 3006570042

Worth knowing
3 open immediately hazardous (class C) HPD violations about doors and windows and fire safety and pests
Source: Housing Maintenance Code Violations · as of 2026-10-19
Worth knowing
Also on record
Clean in the records
Registered with the city

784 REALTY LLC

Heat or hot water: 6 reports to the city since 2024
2024
2025Heat or hot water · Sep 2025 · 1 report (1 complaint)Sep 6, 2025Heat or hot water · Nov 2025 · 1 report (2 complaints)Nov 29, 2025Dec 3, 2025Heat or hot water · Dec 2025 · 2 reports (3 complaints)Dec 14, 2025Dec 26, 2025Dec 31, 2025
2026Heat or hot water · Jan 2026 · 1 report (1 complaint)Jan 17, 2026Heat or hot water · May 2026 · 1 report (1 complaint)May 6, 2026
Source: HPD Complaints and Problems · as of 2026-10-21

Apartments named in these records

Apt 2B 2Apt 3A 2Apt 3C 7Apt 4A 1Apt 5C 1Apt 6C 1Apt 9C 3Apt 10C 1Apt 11C 3

9 of this building’s 35 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
2025 Dec
Fire safety class C · HPD violation
2024 Jun
Fire safetyApt 6C class C · closed · HPD violation
2024 Jun
Fire safety class B · HPD violation
2024 Jun
Fire safety class C · closed · HPD violation
2024 Jun
Fire safetyApt 3A class C · closed · HPD violation

Structure and facade

Issues on record
What has happened here
2026 Sep
Construction class - 1 · DOB violation
2026 Sep
Construction class - 1 · DOB violation
2026 Mar
Construction class - 1 · DOB violation
2025 Dec
Doors and windows class C · HPD violation
2025 Dec
Walls, floors and stairsApt 11C class B · HPD violation
2024 Jun
Doors and windows class B · HPD violation
Show 14 more
2024 Jun
Walls, floors and stairs class A · HPD violation
2021 Aug
General construction permit
2019 Oct
Walls, floors and stairsApt 10C class B · HPD violation
2018 Aug
Doors and windowsApt 5C class A · HPD violation
2017 Oct
General construction permit
2016 Apr
Walls, floors and stairsApt 3C class B · never closed · HPD violation
2016 Apr
Walls, floors and stairsApt 3C class B · never closed · HPD violation
2016 Apr
Walls, floors and stairsApt 3C class B · never closed · HPD violation
2016 Feb
Walls, floors and stairs class A · never closed · HPD violation
2015 Dec
Walls, floors and stairsApt 3C class B · never closed · HPD violation
2015 Dec
Walls, floors and stairsApt 3C class B · never closed · HPD violation
2015 Dec
Walls, floors and stairs class A · never closed · HPD violation
2015 Aug
General construction permit
2011 Oct
General construction permit
  • Facade ratingnot requiredNot required: facade inspections apply only to buildings taller than 6 stories
  • Sidewalk shed and scaffoldingfoundNo active shed permit; permits since Jul 2021, last expired Jul 2022
  • Landmark statusno recordNot in a historic district on record

Heat and hot water

Issues on record · 8 complaints, 2025–2026 · 7 in the past year
What has happened here
2026 May
Heat or hot water complaint
2026 Jan
Heat or hot water complaint
2025 Dec
Heat or hot water complaint
2025 Dec
Heat or hot water complaint
2025 Dec
Heat or hot water complaint
2025 Dec
Heat or hot water class C · closed · HPD violation
Show 25 more
2025 Dec
Heat or hot water complaint
2025 Nov
Heat or hot water complaint
2025 Sep
Heat or hot waterApt 9C complaint
2018 Apr
Low Pressure Boiler DOB violation
2017 Feb
Low Pressure Boiler DOB violation
2015 Oct
Low Pressure Boiler never closed · DOB violation
2015 Oct
Low Pressure Boiler never closed · DOB violation
2015 Mar
Low Pressure Boiler never closed · DOB violation
2015 Mar
Low Pressure Boiler never closed · DOB violation
2013 Dec
Fuel burning permit, Boiler permit
2005 Jan
Local Law 62/91 - Boilers never closed · DOB violation
2005 Jan
Local Law 62/91 - Boilers never closed · DOB violation
2005 Jan
Local Law 62/91 - Boilers never closed · DOB violation
2004 Feb
Local Law 62/91 - Boilers never closed · DOB violation
2004 Feb
Local Law 62/91 - Boilers never closed · DOB violation
2004 Feb
Local Law 62/91 - Boilers never closed · DOB violation
2003 Mar
Local Law 62/91 - Boilers never closed · DOB violation
2002 Mar
Local Law 62/91 - Boilers never closed · DOB violation
2001 Feb
Local Law 62/91 - Boilers never closed · DOB violation
1999 Mar
Local Law 62/91 - Boilers never closed · DOB violation
1999 Mar
Local Law 62/91 - Boilers never closed · DOB violation
1999 Mar
Local Law 62/91 - Boilers never closed · DOB violation
1998 May
Local Law 62/91 - Boilers never closed · DOB violation
1998 May
Local Law 62/91 - Boilers never closed · DOB violation
1998 May
Local Law 62/91 - Boilers never closed · DOB violation
Heat source

Boiler burning natural gas (Federal FST-40), registration expired since Sep 2022

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 Aug 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 permits

Latest boiler work permit 2013 (2 on record)

DOB Permit Issuance (BIS), as of 2026-10-19
What this counts

DOB boiler permits (BIS and DOB NOW); a permit dates work, not the boiler's age

Heat and hot water complaints

7 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

Issues on record, most recently 2024
What has happened here
2024 Jun
Leaks class B · HPD violation
2015 Aug
Plumbing permit
2013 Dec
Plumbing permit
Water service line

Non-Lead (field inspection)

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

Pests and cleanliness

Issues on record · 2 complaints, 2026
What has happened here
2026 Sep
Rubbish and cleanliness class B · HPD violation
2026 Sep
Rubbish and cleanliness class B · HPD violation
2026 Aug
Unsanitary conditions complaint
2026 Aug
PestsApt 2B complaint
2026 Apr
Pests class A · paperwork · HPD violation
2025 Dec
PestsApt 11C class C · HPD violation
Show 7 more
2025 Sep
MoldApt 9C class B · HPD violation
2025 Sep
MoldApt 9C class A · closed · HPD violation
2025 Jun
Pests class A · paperwork · HPD violation
2024 Jun
PestsApt 3C class C · closed · HPD violation
2024 Jun
PestsApt 3C class C · closed · HPD violation
2024 Apr
Pests class A · paperwork · closed · HPD violation
2023 Feb
MoldApt 4A class B · HPD violation

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

General condition and all records

HPD violations

18 open: 16 about building conditions — doors and windows (3), walls, floors and stairs (3), fire safety (2), mold (2); 3 immediately hazardous (class C), 2 about paperwork or notices. Also 12 older records from 1997–2016 never closed. 11 further violations from 2023–2025 were closed. 125 violations on record in all, 1997–2026 — the 41 most recent are listed here

2026 Sep
Rubbish and cleanliness class B
2026 Sep
Rubbish and cleanliness class B
2026 Apr
Pests class A · paperwork
2025 Dec
Other conditions class B
2025 Dec
Doors and windows class C
2025 Dec
Fire safety class C
2025 Dec
Heat or hot water class C · closed
2025 Dec
Walls, floors and stairsApt 11C class B
Show 28 more
2025 Dec
Smoke or CO detectorsApt 11C class B
2025 Dec
PestsApt 11C class C
2025 Nov
Other conditions class I · paperwork · closed
2025 Sep
MoldApt 9C class B
2025 Sep
MoldApt 9C class A · closed
2025 Jun
Pests class A · paperwork
2024 Jun
Fire safetyApt 6C class C · closed
2024 Jun
Doors and windows class B
2024 Jun
Walls, floors and stairs class A
2024 Jun
Fire safety class B
2024 Jun
Leaks class B
2024 Jun
PestsApt 3C class C · closed
2024 Jun
PestsApt 3C class C · closed
2024 Jun
Fire safety class C · closed
2024 Jun
Other conditionsApt 3A class B · closed
2024 Jun
Fire safetyApt 3A class C · closed
2024 Apr
Pests class A · paperwork · closed
2023 Nov
Other conditions class I · paperwork · closed
2023 Feb
MoldApt 4A class B
2019 Oct
Walls, floors and stairsApt 10C class B
2018 Aug
Doors and windowsApt 5C class A
2016 Apr
Walls, floors and stairsApt 3C class B · never closed
2016 Apr
Walls, floors and stairsApt 3C class B · never closed
2016 Apr
Walls, floors and stairsApt 3C class B · never closed
2016 Feb
Walls, floors and stairs class A · never closed
2015 Dec
Walls, floors and stairsApt 3C class B · never closed
2015 Dec
Walls, floors and stairsApt 3C class B · never closed
2015 Dec
Walls, floors and stairs class A · never closed
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

Resident complaints to the city

8 heat or hot water, 1 doors or windows, 1 pests, 1 unsanitary conditions

2026 Aug
Unsanitary conditions
2026 Aug
Doors or windows, pestsApt 2B
2026 May
Heat or hot water
2026 Jan
Heat or hot water
2025 Dec
Heat or hot water
2025 Dec
Heat or hot water
2025 Dec
Heat or hot water
2025 Dec
Heat or hot water
Show 2 more
2025 Nov
Heat or hot water
2025 Sep
Heat or hot waterApt 9C
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

12 permits since 1990

2022 May
Supported scaffold permit
2021 Aug
General construction permit
2017 Oct
General construction permit
2015 Aug
Plumbing permit, General construction permit
2013 Dec
Plumbing permit, Fuel burning permit, Boiler permit
2011 Oct
General construction permit
2011 Oct
Sign 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
2026 Sep
Aeu-Haz Aeuhaz DOB violation
2026 Aug
Doors or windowsApt 2B complaint
2025 Dec
Other conditions class B · HPD violation
2025 Dec
Smoke or CO detectorsApt 11C class B · HPD violation
2025 Nov
Other conditions class I · paperwork · closed · HPD violation
2024 Jun
Other conditionsApt 3A class B · closed · HPD violation
Show 3 more
2023 Nov
Other conditions class I · paperwork · closed · HPD violation
2022 May
Supported scaffold permit
2011 Oct
Sign permit

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.