Printed 2026-10-21 from blueflo.tech/b/400-6-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 1905 · 4 stories · 17 apartments · BIN 3021908 · BBL 3009990038
- City records list the water service line as lead
- 1 open immediately hazardous (class C) HPD violation about fire safety
- 14 heat or hot water complaints filed with the city last winter
- 12 flood insurance claims in this census tract since 1978, 0 of them from 2012
- On the state's list of buildings with rent-stabilized apartments (2024 registrations)
- Boiler inspection filed Jul 2026 with no defects reported
- Outside FEMA's 1% annual-chance flood zone; no mapped stormwater flooding
FREESTONE PROPERTY GROUP LLC, GH 400 6 AVE FEE LLC, GH 400 6 AVE FEE, LLC
Also reported
2024 – 2026- Unsanitary conditions4 reports2024Unsanitary conditions · Feb 2024 · 1 report (1 complaint)Feb 27, 20242025Unsanitary conditions · Apr 2025 · 1 report (1 complaint)Apr 7, 2025Unsanitary conditions · Jun 2025 · 1 report (1 complaint)Jun 30, 2025Unsanitary conditions · Oct 2025 · 1 report (1 complaint)Oct 24, 20252026
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
9 of this building’s 17 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 recordHeat and hot water
Issues on record (2023) · 32 complaints, 2024–2026 · 13 in the past yearShow 42 more
Boiler burning natural gas (Rockmills MP-30), registration expired since Nov 2020
Latest accepted inspection Jul 2026, defects reported: no
What this counts
Accepted annual boiler inspection filings, any date
14 heat or hot water complaints
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
Issues on record · 2 complaints, 2025–2026 · 1 in the past yearLead (records)
Pests and cleanliness
3 complaints, 2025 · 1 in the past yearElectrical
1 resolved in 2025Structure and facade
3 resolved since 2025- 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
Below grade
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
2 open: 2 about building conditions — fire safety (1), mold (1); 1 immediately hazardous (class C). 25 further violations from 2025–2026 were closed. 70 violations on record in all, 2019–2026 — the 33 most recent are listed here
Show 19 more
What this counts
Open HPD violations inspected in the last 10 years; class C = immediately hazardous. Paperwork = failure to file, notify or certify
1 open: 1 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
32 heat or hot water, 3 unsanitary conditions, 1 doors or windows, 1 leaks, 1 mold, 1 paint or plaster, 1 pests, 1 plumbing
Show 32 more
What this counts
HPD complaints received in the last 2 years; the list below is every complaint on record for the last three years
3 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
- 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.