Printed 2026-10-22 from blueflo.tech/b/340-street-marks-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 · 6 apartments · BIN 3028555 · BBL 3011530025
- 25 open immediately hazardous (class C) HPD violations about doors and windows and lead-based paint and leaks and pests and fire safety and heat or hot water and mold and walls, floors and stairs
- 150 open HPD violations about building conditions
- Water service line on record as non-lead (records)
- Outside FEMA's 1% annual-chance flood zone; no mapped stormwater flooding
- No heat or hot water complaints filed last winter
340 ST MARKS AVE HDFC, 340 ST MARKS'S AVE HDFC, 340 ST. MARKS AVENUE HOUSING DEVELOPMENT FUND CORP
How often each problem is reported
2024 – 2026- Mold2 reports20242025Mold · Apr 2025 · 1 report (1 complaint)Apr 17, 2025Mold · Jun 2025 · 1 report (1 complaint)Jun 24, 20252026
- Leaks2 reports20242025Leaks · Apr 2025 · 1 report (1 complaint)Apr 17, 2025Leaks · Jun 2025 · 1 report (1 complaint)Jun 24, 20252026
- Doors or windows2 reports20242025Doors or windows · Apr 2025 · 1 report (2 complaints)Apr 17, 2025Apr 17, 2025 (2nd)Doors or windows · Jun 2025 · 1 report (2 complaints)Jun 24, 2025Jun 24, 2025 (2nd)2026
- Electrical2 reports20242025Electrical · Apr 2025 · 1 report (1 complaint)Apr 17, 2025Electrical · Jun 2025 · 1 report (1 complaint)Jun 24, 20252026
Show 3 more: Floors or stairs, Paint or plaster, Plumbing
- Floors or stairs2 reports20242025Floors or stairs · Apr 2025 · 1 report (1 complaint)Apr 17, 2025Floors or stairs · Jun 2025 · 1 report (1 complaint)Jun 24, 20252026
- Paint or plaster2 reports20242025Paint or plaster · Apr 2025 · 1 report (1 complaint)Apr 17, 2025Paint or plaster · Jun 2025 · 1 report (2 complaints)Jun 24, 2025Jun 24, 2025 (2nd)2026
- Plumbing2 reports20242025Plumbing · Apr 2025 · 1 report (1 complaint)Apr 17, 2025Plumbing · Jun 2025 · 1 report (1 complaint)Jun 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
1 of this building’s 6 apartments is 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 recordShow 8 more
Boiler burning natural gas (Weil Mclain BGL-676), registration expired since Jan 1900
- Boiler inspection filingsnot requiredNot required: residential buildings with 6 or fewer units are exempt from annual filings
- Boiler work permitsno recordNo boiler work permits on record
- Heat and hot water complaintsfound0 heat or hot water complaints
Water and pipes
Issues on record (2025) · 3 complaints, 2025Non-Lead (records)
Pests and cleanliness
Issues on record (2025) · 2 complaints, 2025Fire and safety
Issues on record, most recently 2025Electrical
2 complaints, 2025Structure and facade
Issues on record, most recently 2025Show 7 more
- 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
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
164 open: 150 about building conditions — walls, floors and stairs (42), doors and windows (23), leaks (19), electrical (14); 25 immediately hazardous (class C), 14 about paperwork or notices. Also 20 older records from 1982–2007 never closed. 2 further violations from 2025 were closed. 224 violations on record in all, 1982–2026 — the 186 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
13 open: 7 about building conditions, 6 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
4 doors or windows, 3 paint or plaster, 2 electrical, 2 floors or stairs, 2 leaks, 2 mold, 2 plumbing, 1 general repairs, 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
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
- Rent stabilizationno recordNot on the state's 2024 list. Owners who register late or not at all are missing, so ask HCR about a specific apartment
- 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.