Building record from city data · BROOKLYN, NY

174 23 St

Printed 2026-10-21 from blueflo.tech/b/174-23-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).

Also known as 249 24 St, 249 24 St, 715 4 Ave, 717 4 Ave, 719 4 Ave, 719 4 Ave, 721 4 Ave, 723 4 Ave, 725 4 Ave, 727 4 Ave, 729 4 Ave — one building, several doors.

built 1928 · 5 stories · 165 apartments · BIN 3009537 · BBL 3006490001

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

725 4TH OWNER LLC

Heat or hot water: 18 reports to the city since 2024
2024Heat or hot water · Jan 2024 · 2 reports (2 complaints)Jan 11, 2024Jan 20, 2024Heat or hot water · Nov 2024 · 1 report (1 complaint)Nov 9, 2024
2025Heat or hot water · Feb 2025 · 2 reports (3 complaints)Feb 2, 2025Feb 15, 2025Feb 19, 2025Heat or hot water · Mar 2025 · 2 reports (2 complaints)Mar 2, 2025Mar 21, 2025Heat or hot water · Apr 2025 · 1 report (1 complaint)Apr 10, 2025Heat or hot water · Oct 2025 · 1 report (2 complaints)Oct 23, 2025Oct 26, 2025Heat or hot water · Nov 2025 · 3 reports (5 complaints)Nov 1, 2025Nov 20, 2025Nov 30, 2025Dec 6, 2025Dec 7, 2025Heat or hot water · Dec 2025 · 1 report (1 complaint)Dec 10, 2025
2026Heat or hot water · Jan 2026 · 1 report (3 complaints)Jan 25, 2026Jan 25, 2026 (2nd)Jan 28, 2026Heat or hot water · Feb 2026 · 1 report (2 complaints)Feb 7, 2026Feb 8, 2026Heat or hot water · Mar 2026 · 2 reports (4 complaints)Mar 1, 2026Mar 4, 2026Mar 7, 2026Mar 25, 2026Heat or hot water · Apr 2026 · 1 report (1 complaint)Apr 21, 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 A4 2Apt CC5 4Apt D5 1Apt DD2 5Apt EE1 2Apt FF4 1Apt G4 1Apt GG2 6Apt GG5 6Apt J1 1Apt JJ1 3Apt LL1 2Apt N4 2Apt N5 1Apt NN2 1Apt NN5 2Apt P2 7Apt PP4 3Apt R1 1Apt TT4 1

20 of this building’s 165 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.

Flooding

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: Nuisance flooding (4 in. to 1 ft); 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

Heat and hot water

Issues on record · 25 complaints, 2024–2026 · 18 in the past year
What has happened here
2026 Apr
Heat or hot water complaint
2026 Mar
Heat or hot water complaint
2026 Mar
Heat or hot water complaint
2026 Mar
Heat or hot water complaint
2026 Mar
Heat or hot water complaint
2026 Feb
Heat or hot water complaint
Show 33 more
2026 Feb
Heat or hot water complaint
2026 Jan
Heat or hot water complaint
2026 Jan
Heat or hot water complaint
2026 Jan
Heat or hot waterApt D5 complaint
2025 Dec
Heat or hot water complaint
2025 Dec
Heat or hot water complaint
2025 Dec
Heat or hot water complaint
2025 Nov
Heat or hot water complaint
2025 Nov
Heat or hot water complaint
2025 Nov
Low Pressure Boiler DOB violation
2025 Nov
Heat or hot waterApt CC5 complaint
2025 Oct
Heat or hot waterApt JJ1 complaint
2025 Oct
Heat or hot waterApt TT4 complaint
2025 Apr
Heat or hot water complaint
2025 Mar
Heat or hot water complaint
2025 Mar
Heat or hot water complaint
2025 Feb
Heat or hot water complaint
2025 Feb
Heat or hot water complaint
2025 Feb
Heat or hot water complaint
2024 Nov
Heat or hot water complaint
2024 Jan
Heat or hot waterApt NN2 complaint
2024 Jan
Heat or hot water complaint
2023 Dec
Heat or hot water complaint
2023 Nov
Heat or hot water complaint
2023 Nov
Heat or hot water complaint
2023 Jun
Low Pressure Boiler DOB violation
2023 Jun
Low Pressure Boiler DOB violation
2023 Jun
Low Pressure Boiler DOB violation
2023 Jun
Low Pressure Boiler DOB violation
2023 Jun
Low Pressure Boiler DOB violation
2023 Jun
Low Pressure Boiler DOB violation
2019 Dec
Heat or hot waterApt GG5 class C · HPD violation
2013 Sep
Heating/ventilation permit
Heat source

Boiler burning natural gas (Natco VW-0400-CN12), registration current since Nov 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 permits

Latest boiler work permit 2009

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

21 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

1 complaint, 2025
What has happened here
2025 Mar
PlumbingApt LL1 complaint
2024 Jul
LeaksApt N4 complaint
2024 Jun
LeaksApt DD2 class B · closed · HPD violation
2024 Apr
LeaksApt G4 complaint
2024 Apr
LeaksApt P2 complaint
2019 Dec
LeaksApt GG5 class B · HPD violation
Show 1 more
2010 Sep
Plumbing permit
Water service line

Non-Lead (field inspection)

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

Pests and cleanliness

3 complaints, 2025–2026 · 2 in the past year
What has happened here
2026 Aug
Unsanitary conditions complaint
2025 Nov
PestsApt CC5 class C · closed · HPD violation
2025 Oct
PestsApt CC5 complaint
2025 Oct
PestsApt JJ1 class C · closed · HPD violation
2025 Mar
MoldApt LL1 complaint
2024 Jun
MoldApt DD2 class B · closed · HPD violation
Show 14 more
2024 May
MoldApt DD2 complaint
2024 Apr
MoldApt P2 class B · closed · HPD violation
2024 Apr
PestsApt EE1 class C · closed · HPD violation
2024 Apr
MoldApt P2 complaint
2024 Apr
PestsApt EE1 complaint
2024 Jan
PestsApt FF4 complaint
2023 Nov
PestsApt R1 complaint
2020 Aug
PestsApt GG2 class C · HPD violation
2020 Aug
PestsApt GG2 class C · HPD violation
2020 Jun
PestsApt GG2 class C · HPD violation
2020 Jun
PestsApt GG2 class C · HPD violation
2020 Mar
PestsApt J1 class C · HPD violation
2020 Mar
PestsApt N5 class C · HPD violation
2019 Nov
PestsApt PP4 class C · HPD violation

Fire and safety

Older records on file
What has happened here
2025 Nov
Fire safetyApt CC5 class C · closed · HPD violation
2025 Oct
Fire safetyApt JJ1 class C · closed · HPD violation
2025 Apr
Fire safety class B · closed · HPD violation
2024 Jun
Fire safetyApt DD2 class C · closed · HPD violation
2024 Apr
Fire safetyApt P2 class C · closed · HPD violation
2019 Nov
Fire safetyApt A4 class B · HPD violation

Electrical

1 complaint, 2026
What has happened here
2026 Aug
Electrical complaint

Structure and facade

Issues on record, most recently 2021
What has happened here
2024 Jun
Walls, floors and stairsApt DD2 class B · closed · HPD violation
2024 Apr
Walls, floors and stairsApt P2 class B · closed · HPD violation
2024 Apr
Doors and windowsApt P2 class B · closed · HPD violation
2021 Nov
Doors and windows class B · HPD violation
2021 Jul
Doors and windows class B · HPD violation
2021 Jul
Doors and windows class B · HPD violation
Show 11 more
2021 Jul
Doors and windows class B · HPD violation
2020 Jun
Walls, floors and stairsApt GG2 class B · HPD violation
2020 Jun
Walls, floors and stairsApt GG2 class B · HPD violation
2019 Dec
Doors and windowsApt GG5 class A · HPD violation
2019 Dec
Walls, floors and stairsApt GG5 class B · HPD violation
2019 Nov
Doors and windowsApt A4 class C · HPD violation
2019 Nov
Walls, floors and stairsApt NN5 class A · HPD violation
2019 Nov
Walls, floors and stairsApt NN5 class A · HPD violation
2016 Jun
General construction permit
2016 Feb
General construction permit, Construction fence permit
2013 Sep
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

Elevators

1 complaint, 2026
What has happened here
2026 Aug
Elevators complaint
  • Elevatorsnot requiredNo elevators registered to this building

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

Energy

Energy

ENERGY STAR score 100 (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

48 open: 48 about building conditions — walls, floors and stairs (16), doors and windows (13), pests (8), fire safety (4); 9 immediately hazardous (class C). Also 5 older records from 2013–2016 never closed. 15 further violations from 2024–2025 were closed. 393 violations on record in all, 2001–2025 — the 68 most recent are listed here

2025 Nov
Other conditions class I · paperwork · closed
2025 Nov
Fire safetyApt CC5 class C · closed
2025 Nov
PestsApt CC5 class C · closed
2025 Oct
Fire safetyApt JJ1 class C · closed
2025 Oct
PestsApt JJ1 class C · closed
2025 Apr
Fire safety class B · closed
2024 Jun
Fire safetyApt DD2 class C · closed
2024 Jun
Walls, floors and stairsApt DD2 class B · closed
Show 32 more
2024 Jun
LeaksApt DD2 class B · closed
2024 Jun
MoldApt DD2 class B · closed
2024 Apr
Walls, floors and stairsApt P2 class B · closed
2024 Apr
MoldApt P2 class B · closed
2024 Apr
PestsApt EE1 class C · closed
2024 Apr
Fire safetyApt P2 class C · closed
2024 Apr
Doors and windowsApt P2 class B · closed
2021 Nov
Doors and windows class B
2021 Jul
Doors and windows class B
2021 Jul
Doors and windows class B
2021 Jul
Doors and windows class B
2020 Aug
PestsApt GG2 class C
2020 Aug
PestsApt GG2 class C
2020 Jun
Walls, floors and stairsApt GG2 class B
2020 Jun
Walls, floors and stairsApt GG2 class B
2020 Jun
PestsApt GG2 class C
2020 Jun
PestsApt GG2 class C
2020 Mar
PestsApt J1 class C
2020 Mar
PestsApt N5 class C
2019 Dec
Doors and windowsApt GG5 class A
2019 Dec
Smoke or CO detectorsApt GG5 class B
2019 Dec
Smoke or CO detectorsApt GG5 class B
2019 Dec
Walls, floors and stairsApt GG5 class B
2019 Dec
LeaksApt GG5 class B
2019 Dec
Heat or hot waterApt GG5 class C
2019 Nov
Smoke or CO detectorsApt PP4 class B
2019 Nov
Smoke or CO detectorsApt PP4 class B
2019 Nov
PestsApt PP4 class C
2019 Nov
Doors and windowsApt A4 class C
2019 Nov
Fire safetyApt A4 class B
2019 Nov
Walls, floors and stairsApt NN5 class A
2019 Nov
Walls, floors and stairsApt NN5 class A
and 13 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

7 open: 7 about building conditions

2025 Nov
Low Pressure Boiler
2023 Jun
Low Pressure Boiler
2023 Jun
Low Pressure Boiler
2023 Jun
Low Pressure Boiler
2023 Jun
Low Pressure Boiler
2023 Jun
Low Pressure Boiler
2023 Jun
Low Pressure Boiler
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

Permit history

26 permits since 1990

2025 Mar
Mechanical systems permit
2021 Jun
Sign permit
2016 Jun
General construction permit
2016 Feb
General construction permit, Construction fence permit
2014 Jan
Sign permit
2014 Jan
Sign permit
2013 Sep
Heating/ventilation permit, General construction permit
2010 Sep
Plumbing permit
and 18 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 Aug
General repairs complaint
2025 Nov
Other conditions class I · paperwork · closed · HPD violation
2025 Mar
Mechanical systems permit
2024 Jul
Paint or plasterApt N4 complaint
2024 Mar
Doors or windowsApt P2 complaint
2021 Jun
Sign permit
Show 6 more
2019 Dec
Smoke or CO detectorsApt GG5 class B · HPD violation
2019 Dec
Smoke or CO detectorsApt GG5 class B · HPD violation
2019 Nov
Smoke or CO detectorsApt PP4 class B · HPD violation
2019 Nov
Smoke or CO detectorsApt PP4 class B · HPD violation
2014 Jan
Sign permit
2014 Jan
Sign permit

Nothing on record

Gasno record
  • Gas pipingno recordNo open gas piping filing violations. Inspection results themselves are not published

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.