403 Kosciuszko St — building record — Blueflo

Building record from city data · BROOKLYN, NY

Printed 2026-10-21 from blueflo.tech/b/403-kosciuszko-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 1931 · 4 stories · 13 apartments · BIN 3043224 · BBL 3016010053

Worth knowing

7 open immediately hazardous (class C) HPD violations about pests and mold and fire safety and leaks

Source: Housing Maintenance Code Violations · as of 2026-10-19

Worth knowing

7 open immediately hazardous (class C) HPD violations about pests and mold and fire safety and leaks
16 heat or hot water complaints filed with the city last winter
42 open HPD violations about building conditions

Also on record

On the state's list of buildings with rent-stabilized apartments (2024 registrations)

Clean in the records

Water service line on record as non-lead (records)
Outside FEMA's 1% annual-chance flood zone; no mapped stormwater flooding

Registered with the city

ELH MGMT.LLC, 27 BEDSTUY. LLC, 27 BED STUY HOUSING DEVELOPMENT FUND COR PORATION

Heat or hot water: 6 reports to the city since 2024

2024Heat or hot water · Dec 2024 · 1 report (1 complaint)Dec 23, 2024

2025Heat or hot water · Dec 2025 · 1 report (1 complaint)Dec 17, 2025

2026Heat or hot water · Jan 2026 · 1 report (1 complaint)Jan 29, 2026Heat or hot water · Feb 2026 · 2 reports (11 complaints)Feb 7, 2026 Feb 8, 2026 Feb 8, 2026 (2nd)Feb 9, 2026 Feb 10, 2026 Feb 10, 2026 (2nd)Feb 14, 2026 Feb 14, 2026 (2nd)Feb 16, 2026 Feb 17, 2026 Feb 19, 2026Heat or hot water · Mar 2026 · 1 report (2 complaints)Mar 15, 2026 Mar 16, 2026

Source: HPD Complaints and Problems · as of 2026-10-21

Also reported

2024 – 2026

General repairs5 reports
2024
2025General repairs · Jun 2025 · 1 report (2 complaints)Jun 6, 2025 Jun 12, 2025General repairs · Sep 2025 · 1 report (2 complaints)Sep 26, 2025 Sep 26, 2025 (2nd)General repairs · Oct 2025 · 1 report (1 complaint)Oct 13, 2025General repairs · Nov 2025 · 1 report (1 complaint)Nov 3, 2025
2026General repairs · Jul 2026 · 1 report (1 complaint)Jul 10, 2026
Appliances2 reports
2024Appliances · Oct 2024 · 1 report (1 complaint)Oct 12, 2024
2025
2026Appliances · Jul 2026 · 1 report (1 complaint)Jul 4, 2026
Plumbing2 reports
2024Plumbing · Dec 2024 · 1 report (1 complaint)Dec 12, 2024
2025Plumbing · Nov 2025 · 1 report (1 complaint)Nov 3, 2025
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 1A 6 Apt 1D 3 Apt 2A 10 Apt 2B 8 Apt 2C 9 Apt 3A 16 Apt 3B 8 Apt 3C 12 Apt 4A 1 Apt 4B 11 Apt 4C 1 Apt B2 1 Apt B4 5

13 of this building’s 13 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

Issues on record · 16 complaints, 2024–2026 · 15 in the past year

What has happened here

Heat or hot waterApt 4C complaint

Heat or hot waterApt 4B complaint

Heat or hot waterApt 4B complaint

Heat or hot waterApt B4 complaint

Heat or hot waterApt B2 complaint

Heat or hot waterApt B4 complaint

Show 42 more

Heat or hot water complaint

Heat or hot water complaint

Heat or hot waterApt 1A complaint

Heat or hot water complaint

Heat or hot water complaint

Heat or hot waterApt 3C complaint

Heat or hot waterApt 4B complaint

Heat or hot waterApt 4B complaint

Heat or hot waterApt 4B complaint

BE-EXT-LP Boiler DOB violation

Heat or hot waterApt 4B complaint

Heat or hot waterApt 1A complaint

Heat or hot waterApt 2A complaint

Heat or hot waterApt 4B complaint

Heat or hot waterApt 2B complaint

Heat or hot water class C · closed · HPD violation

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

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

Heat or hot waterApt 2A complaint

Heat or hot water complaint

Heat or hot waterApt 1D class C · closed · HPD violation

Heat or hot water class C · closed · HPD violation

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

Heat or hot waterApt 3C complaint

Heat or hot waterApt 3A complaint

Heat or hot water class C · closed · HPD violation

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

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

Heat or hot water complaint

Heat or hot waterApt 4B complaint

Heat or hot waterApt 1A complaint

Heat or hot waterApt 2B complaint

BE-EXT-LP Boiler DOB violation

Heat or hot water complaint

Heat or hot waterApt B4 complaint

Heat or hot waterApt 4A complaint

Heat or hot waterApt 2C complaint

Heat or hot water complaint

Heat or hot waterApt 2A complaint

Heat or hot waterApt B4 complaint

Heat or hot waterApt 3B complaint

Heat or hot waterApt 2B complaint

Boiler inspection filings

Latest accepted inspection Jun 2026, defects reported: yes

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

Heat and hot water complaints

16 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)

Heat sourceno recordNo boiler registration or district steam on record
Boiler work permitsno recordNo boiler work permits on record

Water and pipes

Issues on record (2025) · 2 complaints, 2024–2025 · 1 in the past year

What has happened here

PlumbingApt 1A complaint

LeaksApt 3B class B · HPD violation

PlumbingApt 3C class B · closed · HPD violation

PlumbingApt 3C complaint

LeaksApt 2C class B · HPD violation

LeaksApt 2C class B · HPD violation

Show 8 more

Plumbing complaint

LeaksApt 3C class B · closed · HPD violation

Plumbing complaint

Plumbing complaint

Plumbing complaint

LeaksApt 2B class B · HPD violation

LeaksApt 2B class C · HPD violation

Plumbing permit

Water service line

Non-Lead (records)

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

Pests and cleanliness

Issues on record, most recently 2024

What has happened here

PestsApt 3A class C · HPD violation

MoldApt 2C class C · HPD violation

MoldApt 2C class B · closed · HPD violation

MoldApt 1D class C · closed · HPD violation

PestsApt 1D class C · closed · HPD violation

PestsApt 3A class C · closed · HPD violation

Show 3 more

PestsApt 2B class C · HPD violation

MoldApt 2B class C · HPD violation

PestsApt 3A class C · HPD violation

Fire and safety

Issues on record, most recently 2023

What has happened here

Fire safety class C · closed · HPD violation

Fire safety class C · closed · HPD violation

Fire safetyApt 2C class C · HPD violation

Electrical

Issues on record, most recently 2023

What has happened here

ElectricalApt 3A class B · HPD violation

Structure and facade

Issues on record, most recently 2025

What has happened here

Doors and windowsApt 3B class B · HPD violation

Walls, floors and stairsApt 3B class B · closed · HPD violation

Walls, floors and stairsApt 3C class A · closed · HPD violation

Walls, floors and stairsApt 2C class B · HPD violation

Walls, floors and stairsApt 3C class B · closed · HPD violation

Walls, floors and stairsApt 2B class B · HPD violation

Show 10 more

Walls, floors and stairsApt 3A class A · HPD violation

Doors and windowsApt 3A class B · HPD violation

Doors and windowsApt 3A class B · HPD violation

Walls, floors and stairsApt 3A class B · HPD violation

Doors and windowsApt 3A class B · HPD violation

Walls, floors and stairsApt 3A class B · HPD violation

Walls, floors and stairsApt 3A class A · HPD violation

Doors and windowsApt 3A class B · HPD violation

General construction permit

Alteration permit

Facade ratingnot requiredNot required: facade inspections apply only to buildings taller than 6 stories
Sidewalk shed and scaffoldingfoundNo active shed permit
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

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

PL-PER Gas Piping - LL152 DOB violation

Gas piping

Open violation for not filing the periodic gas piping inspection (2026)

DOB Safety Violations, as of 2026-10-19

What this counts

Paperwork violation: the filing is missing, which is not a finding about the pipes

General condition and all records

HPD violations

42 open: 42 about building conditions — walls, floors and stairs (10), doors and windows (8), leaks (7), smoke or CO detectors (7); 7 immediately hazardous (class C). 25 further violations from 2023–2026 were closed. 261 violations on record in all, 2012–2026 — the 71 most recent are listed here

Fire safety class C · closed

Fire safety class C · closed

Other conditionsApt 2A class B · closed

LeaksApt 3B class B

Doors and windowsApt 3B class B

Smoke or CO detectorsApt 3B class B · closed

Smoke or CO detectorsApt 3B class B · closed

Walls, floors and stairsApt 3B class B · closed

Show 42 more

Walls, floors and stairsApt 3C class A · closed

PlumbingApt 3C class B · closed

PestsApt 3A class C

Smoke or CO detectorsApt 2C class B · closed

Smoke or CO detectorsApt 2C class B · closed

MoldApt 2C class C

Fire safetyApt 2C class C

Walls, floors and stairsApt 2C class B

LeaksApt 2C class B

LeaksApt 2C class B

MoldApt 2C class B · closed

Smoke or CO detectorsApt 3C class B

Smoke or CO detectorsApt 3C class B

Heat or hot water class C · closed

Walls, floors and stairsApt 3C class B · closed

Heat or hot waterApt 3C class C · closed

LeaksApt 3C class B · closed

Heat or hot waterApt 3C class C · closed

MoldApt 1D class C · closed

PestsApt 1D class C · closed

Heat or hot waterApt 1D class C · closed

PestsApt 3A class C · closed

Heat or hot water class C · closed

Heat or hot waterApt 3A class C · closed

Heat or hot water class C · closed

Heat or hot waterApt 2A class C · closed

Heat or hot waterApt 2A class C · closed

LeaksApt 2B class B

PestsApt 2B class C

MoldApt 2B class C

Walls, floors and stairsApt 2B class B

LeaksApt 2B class C

Walls, floors and stairsApt 3A class A

ElectricalApt 3A class B

Doors and windowsApt 3A class B

Doors and windowsApt 3A class B

Walls, floors and stairsApt 3A class B

Doors and windowsApt 3A class B

Walls, floors and stairsApt 3A class B

Walls, floors and stairsApt 3A class A

PestsApt 3A class C

Doors and windowsApt 3A class B

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

3 open: 3 about filings or paperwork

PL-PER Gas Piping - LL152

BE-EXT-LP Boiler

BE-EXT-LP 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

Resident complaints to the city

16 heat or hot water, 7 general repairs, 2 plumbing, 1 appliances, 1 paint or plaster

General repairsApt 4B

AppliancesApt 4B

Heat or hot waterApt 4C

Heat or hot waterApt 4B

Heat or hot waterApt 4B

Heat or hot waterApt B4

Heat or hot waterApt B2

Heat or hot waterApt B4

Show 46 more

Heat or hot water

Heat or hot water

Heat or hot waterApt 1A

Heat or hot water

Heat or hot water

Heat or hot waterApt 3C

Heat or hot waterApt 4B

Heat or hot waterApt 4B

Heat or hot waterApt 4B

General repairs, plumbingApt 1A

General repairsApt B4

General repairsApt 2A

General repairsApt 3B

General repairsApt 2A

Heat or hot waterApt 4B

Paint or plaster, plumbingApt 3C

AppliancesApt 3A

Doors or windowsApt 1A

Heat or hot waterApt 1A

Doors or windowsApt 4B

Heat or hot waterApt 2A

Heat or hot waterApt 4B

Heat or hot waterApt 2B

Heat or hot waterApt 2A

Heat or hot water

Heat or hot waterApt 3C

Doors or windowsApt 3A

Heat or hot waterApt 3A

Heat or hot water

Heat or hot waterApt 4B

Heat or hot waterApt 1A

Heat or hot waterApt 2B

Outside the buildingApt 3B

Heat or hot water

Heat or hot waterApt B4

Heat or hot waterApt 4A

Heat or hot waterApt 2C

Heat or hot water

Heat or hot waterApt 2A

Heat or hot waterApt B4

Heat or hot waterApt 3B

Heat or hot waterApt 2B

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

3 permits since 1990

General construction permit

Alteration permit, Plumbing permit

and 1 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

General repairsApt 4B complaint

AppliancesApt 4B complaint

General repairsApt 1A complaint

General repairsApt B4 complaint

Other conditionsApt 2A class B · closed · HPD violation

General repairsApt 2A complaint

Show 14 more

Smoke or CO detectorsApt 3B class B · closed · HPD violation

Smoke or CO detectorsApt 3B class B · closed · HPD violation

General repairsApt 3B complaint

General repairsApt 2A complaint

Paint or plasterApt 3C complaint

AppliancesApt 3A complaint

Smoke or CO detectorsApt 2C class B · closed · HPD violation

Smoke or CO detectorsApt 2C class B · closed · HPD violation

Doors or windowsApt 1A complaint

Doors or windowsApt 4B complaint

Smoke or CO detectorsApt 3C class B · HPD violation

Smoke or CO detectorsApt 3C class B · HPD violation

Doors or windowsApt 3A complaint

Outside the buildingApt 3B complaint

Nothing on record

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

FEMA National Flood Hazard Layer2026-10-20
OpenFEMA NFIP Redacted Claims (v3)2026-09-09

NYC DCP

NYC GeoSearch (address directory)2026-10-20
PLUTO (tax lot data)2026-08-24

NYC DEP

Clean Air Tracking System (boiler registrations)2026-10-20
Lead Service Line Location Coordinates2026-01-30

NYC DEP / Mayor's Office

NYC Stormwater Flood Maps2024-07-03

NYC DOB

DOB NOW Elevator Safety Compliance2026-10-19
DOB NOW: Build – Approved Permits2026-10-19
DOB NOW: Safety Boiler2026-10-19
DOB NOW: Safety – Facades Compliance Filings2026-10-19
DOB Permit Issuance (BIS)2026-10-19
DOB Safety Violations2026-10-19
DOB Violations2026-10-19

NYC DOB / Mayor's Office

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

NYC HPD

Buildings Subject to HPD Jurisdiction2026-08-12
Housing Maintenance Code Complaints and Problems2026-10-20
Housing Maintenance Code Violations2026-10-19
Multiple Dwelling Registrations2026-08-12
Registration Contacts2026-08-12

NYC OTI

AddressPoint2026-07-07
Building Footprints2026-10-19

NYC Rent Guidelines Board / NYS HCR

Rent Stabilized Building Lists (2024 HCR registrations)2025-11-30

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