Printed 2026-10-21 from blueflo.tech/b/399-6-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 1923 · 4 stories · 16 apartments · BIN 3021710 · BBL 3009950005
- 1 open immediately hazardous (class C) HPD violation about heat or hot water
- On the state's list of buildings with rent-stabilized apartments (2024 registrations)
- Water service line on record as non-lead (field inspection)
- Boiler inspection filed Jun 2026 with no defects reported
- Outside FEMA's 1% annual-chance flood zone; no mapped stormwater flooding
- No heat or hot water complaints filed last winter
399 6TH AVE CORP., 399 6TH AVE CORP, 399 6TH AVE. CORP.
Also reported
2024 – 2026- Paint or plaster3 reports20242025Paint or plaster · Feb 2025 · 1 report (1 complaint)Feb 19, 2025Paint or plaster · Mar 2025 · 1 report (1 complaint)Mar 14, 20252026Paint or plaster · Jun 2026 · 1 report (2 complaints)Jun 12, 2026Jun 12, 2026 (2nd)
- Unsanitary conditions3 reports20242025Unsanitary conditions · Dec 2025 · 1 report (1 complaint)Dec 20, 20252026Unsanitary conditions · Feb 2026 · 1 report (1 complaint)Feb 16, 2026Unsanitary conditions · Jun 2026 · 1 report (1 complaint)Jun 24, 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
Heat and hot water
Issues on record, most recently 2024Show 1 more
Boiler burning natural gas (Weil Mclain LGB-7), registration current since Feb 2025
Latest accepted inspection Jun 2026, defects reported: no
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
1 complaint, 2026Non-Lead (field inspection)
Pests and cleanliness
5 complaints, 2024–2026 · 4 in the past yearFire and safety
3 resolved since 2023Electrical
1 resolved in 2024Structure and facade
Older records on file- 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 recordOutside FEMA's 1% annual-chance flood zone: X
What this counts
Effective FIRM zones touching the building footprint
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)
What this counts
Mapped ponding touching the building footprint
- BasementfoundNo basement
Rent and tenancy
On the state listOn the state's list of buildings with at least one rent-stabilized apartment (2024 registrations)
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
General condition and all records
1 open: 1 about building conditions — heat or hot water (1); 1 immediately hazardous (class C). Also 1 older record from 2003 never closed. 18 further violations from 2023–2025 were closed. 25 violations on record in all, 2003–2025 — the 20 most recent are listed here
Show 12 more
What this counts
Open HPD violations inspected in the last 10 years; class C = immediately hazardous. Paperwork = failure to file, notify or certify
4 paint or plaster, 3 unsanitary conditions, 2 pests, 1 general repairs, 1 leaks
What this counts
HPD complaints received in the last 2 years; the list below is every complaint on record for the last three years
- DOB violationsfound0 open
- Permit historyno record0 permits since 1990
Nothing on record
- Gas pipingno recordNo open gas piping filing violations. Inspection results themselves are not published
- 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.