Printed 2026-10-21 from blueflo.tech/b/601-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 · 16 apartments · BIN 3043318 · BBL 3016040045
- Basement on record, and the city's stormwater map shows flooding here in at least one storm scenario
- On the state's list of buildings with rent-stabilized apartments (2024 registrations)
- City stormwater map shows deep and contiguous flooding at this building in the Extreme storm, 2080 sea levels scenario
- Water service line on record as non-lead (records)
- Outside FEMA's 1% annual-chance flood zone
NASHER REALTY ASSOCIATE, INC, NU WORLD BUILDERS LLC
Apartments named in these records
Flooding
Issues on recordOutside FEMA's 1% annual-chance flood zone: X
What this counts
Effective FIRM zones touching the building footprint
Extreme storm, 2080 sea levels: Deep and contiguous flooding (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)
What this counts
Mapped ponding touching the building footprint
Below grade
Heat and hot water
Issues on record · 2 complaints, 2025–2026 · 1 in the past yearBoiler burning No. 2 oil (Rockmill Mp30 ROCKMILL MP30), registration expired since May 1990
Latest accepted inspection Jun 2025, defects reported: no
What this counts
Accepted annual boiler inspection filings, any date
1 heat or hot water complaint
What this counts
HPD complaints, heat season 2025–26 (Oct 1–May 31)
- Boiler work permitsno recordNo boiler work permits on record
Water and pipes
No issues on recordNon-Lead (records)
Pests and cleanliness
Older records on fileStructure and facade
No issues on record- 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
Rent and tenancy
On the state listOn the state's list of buildings with at least one rent-stabilized apartment (2024 registrations). Listed under the J-51 tax program, so stabilization can end when the exemption does
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
Open violation for not filing the periodic gas piping inspection (2026)
What this counts
Paperwork violation: the filing is missing, which is not a finding about the pipes
General condition and all records
1 open: 1 about building conditions — smoke or CO detectors (1). 3 further violations from 2024–2026 were closed. 12 violations on record in all, 2014–2026 — the 4 most recent are listed here
What this counts
Open HPD violations inspected in the last 10 years; class C = immediately hazardous. Paperwork = failure to file, notify or certify
4 open: 2 about building conditions, 2 about filings or paperwork
What this counts
Open DOB, ECB and DOB NOW Safety violations, any date, one per violation. ECB class 1 = hazardous, class 2 = major
2 heat or hot water
What this counts
HPD complaints received in the last 2 years; the list below is every complaint on record for the last three years
2 permits since 1990
What this counts
DOB permits issued (DOB NOW and legacy BIS), one per job and work type; excludes sheds
Nothing on record
- Energynot requiredNot required: energy reporting applies to buildings over 25,000 sq ft
- Elevatorsnot requiredNo elevators registered to this building
Sources
23 datasetsFEMA
- 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
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
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
Each date is when we last checked that dataset, not when the record itself was created.