Printed 2026-10-21 from blueflo.tech/b/870-4-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 1931 · 3 stories · 4 apartments · BIN 3010002 · BBL 3006760042
- 2 open immediately hazardous (class C) HPD violations about doors and windows
- 11 flood insurance claims in this census tract since 1978, 0 of them from 2012
- Water service line on record as non-lead (field inspection)
- Outside FEMA's 1% annual-chance flood zone; no mapped stormwater flooding
- No heat or hot water complaints filed last winter
YANG'S FAMILY I LLC
Also reported
2024 – 2026- General repairs2 reports202420252026General repairs · Sep 2026 · 2 reports (3 complaints)Sep 3, 2026Sep 22, 2026Sep 22, 2026 (2nd)
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
Structure and facade
Issues on record- 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
Heat and hot water
3 complaints, 2026Latest accepted inspection Dec 2023, defects reported: no
What this counts
Accepted annual boiler inspection filings, any date
Latest boiler work permit 2024
What this counts
DOB boiler permits (BIS and DOB NOW); a permit dates work, not the boiler's age
- Heat sourceno recordNo boiler registration or district steam on record
- Heat and hot water complaintsfound0 heat or hot water complaints
Water and pipes
1 complaint, 2026Non-Lead (field inspection)
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
- Basementno recordUnknown
Gas
Open violation for not filing the periodic gas piping inspection (2025)
What this counts
Paperwork violation: the filing is missing, which is not a finding about the pipes
General condition and all records
3 open: 3 about building conditions — doors and windows (2), smoke or CO detectors (1); 2 immediately hazardous (class C)
What this counts
Open HPD violations inspected in the last 10 years; class C = immediately hazardous. Paperwork = failure to file, notify or certify
3 open: 1 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
3 general repairs, 3 heat or hot water, 1 doors or windows, 1 plumbing, 1 safety
What this counts
HPD complaints received in the last 2 years; the list below is every complaint on record for the last three years
5 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
- Rent stabilizationnot requiredNot on the state's list. Rent stabilization generally applies to buildings with 6 or more apartments
Sources
22 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
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.