# 309 86 St, Brooklyn What New York City's public records say about this building. Page: https://blueflo.tech/b/309-86-street-brooklyn > These are city records, not an inspection by Blueflo. Every item shows its source and the date it was last checked. Also known as 311 86 St, 8517 3 Ave, 8519 3 Ave, 8521 3 Ave, 8523 3 Ave, 8525 3 Ave, 8527 3 Ave, 8529 3 Ave: one building, several doors, and this card covers all of them. ## In one line 48 open immediately hazardous (class C) HPD violations about pests and fire safety and lead-based paint and doors and windows and heat or hot water and leaks and mold and plumbing and walls, floors and stairs (Housing Maintenance Code Violations, as of 2026-10-23) ## The building - **Year built:** 1927 (PLUTO (tax lot data), as of 2026-08-24) - **Stories:** 4 (Buildings Subject to HPD Jurisdiction, as of 2026-08-12) - **Homes:** 42 (Buildings Subject to HPD Jurisdiction, as of 2026-08-12) ## Worth knowing - 48 open immediately hazardous (class C) HPD violations about pests and fire safety and lead-based paint and doors and windows and heat or hot water and leaks and mold and plumbing and walls, floors and stairs - 50 heat or hot water complaints filed with the city last winter - 130 open HPD violations about building conditions ## Also on record - On the state's list of buildings with rent-stabilized apartments (2024 registrations) ## Clean in the records - Water service line on record as non-lead (field inspection) (Lead Service Line Location Coordinates, as of 2026-01-30) - Outside FEMA's 1% annual-chance flood zone; no mapped stormwater flooding (FEMA National Flood Hazard Layer, as of 2026-10-23) ## Building systems - **Boiler inspection filings:** No boiler filings under this building's ID (DOB NOW: Safety Boiler, as of 2026-10-22) - **Facade rating:** Not required: facade inspections apply only to buildings taller than 6 stories (DOB NOW: Safety – Facades Compliance Filings, as of 2026-10-22) - **Water service line:** Non-Lead (field inspection) (Lead Service Line Location Coordinates, as of 2026-01-30) - **FEMA flood zone:** Outside FEMA's 1% annual-chance flood zone: X (FEMA National Flood Hazard Layer, as of 2026-10-23) - **Stormwater flooding:** 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) (NYC Stormwater Flood Maps, as of 2024-07-03) - **Basement:** Below grade (PLUTO (tax lot data), as of 2026-08-24) ## Violations and complaints - **HPD violations:** 159 open: 130 about building conditions — pests (20), walls, floors and stairs (20), mold (17), smoke or CO detectors (16); 48 immediately hazardous (class C), 29 about paperwork or notices. Also 3 older records from 2008–2013 never closed. 25 further violations from 2025 were closed. 1,161 violations on record in all, 1984–2026 — the 482 most recent are listed here (Housing Maintenance Code Violations, as of 2026-10-23) - **DOB violations:** 26 open: 2 about building conditions, 19 about filings or paperwork, 5 older than 10 years (DOB Violations, as of 2026-10-22) - **Heat and hot water complaints:** 50 heat or hot water complaints (Housing Maintenance Code Complaints and Problems, as of 2026-10-23) - **Resident complaints to the city:** 81 heat or hot water, 14 plumbing, 10 leaks, 7 paint or plaster, 6 pests, 5 mold, 4 doors or windows, 3 appliances, 3 general repairs, 2 electrical, 1 unsanitary conditions (Housing Maintenance Code Complaints and Problems, as of 2026-10-23) ## More systems - **Rent stabilization:** On the state's list of buildings with at least one rent-stabilized apartment (2024 registrations) (Rent Stabilized Building Lists (2024 HCR registrations), as of 2025-11-30) - **Heat source:** Boiler burning No. 2 oil (Federal-Fst 70 FEDERAL-FST 70), registration cancelled since May 2024 (Clean Air Tracking System (boiler registrations), as of 2026-10-23) - **Boiler work permits:** Latest boiler work permit 1991 (DOB Permit Issuance (BIS), as of 2026-10-23) - **Elevators:** No elevators registered to this building (DOB NOW Elevator Safety Compliance, as of 2026-10-22) - **Gas piping:** No open gas piping filing violations. Inspection results themselves are not published (DOB Safety Violations, as of 2026-10-22) - **Energy:** ENERGY STAR score 84 (2024 report) (Energy and Water Data Disclosure (Local Law 84), as of 2025-11-25) ## Permits and work - **Permit history:** 18 permits since 1990 (DOB NOW: Build – Approved Permits, as of 2026-10-22) - **Sales:** No recorded sale since 2016 (NYC Citywide Annualized Calendar Sales, as of 2026-06-09) - **Sidewalk shed and scaffolding:** No active shed permit (DOB NOW: Build – Approved Permits, as of 2026-10-22) - **Landmark status:** Not in a historic district on record (PLUTO (tax lot data), as of 2026-08-24) ## By apartment 30 of 42 apartments named in a city record: - Apt 1A: https://blueflo.tech/b/309-86-street-brooklyn/unit/1a - Apt 1C: https://blueflo.tech/b/309-86-street-brooklyn/unit/1c - Apt 7: https://blueflo.tech/b/309-86-street-brooklyn/unit/7 - Apt 37: https://blueflo.tech/b/309-86-street-brooklyn/unit/37 - Apt A2: https://blueflo.tech/b/309-86-street-brooklyn/unit/a2 - Apt A3: https://blueflo.tech/b/309-86-street-brooklyn/unit/a3 - Apt A4: https://blueflo.tech/b/309-86-street-brooklyn/unit/a4 - Apt A5: https://blueflo.tech/b/309-86-street-brooklyn/unit/a5 - Apt B1: https://blueflo.tech/b/309-86-street-brooklyn/unit/b1 - Apt B10: https://blueflo.tech/b/309-86-street-brooklyn/unit/b10 - Apt B11: https://blueflo.tech/b/309-86-street-brooklyn/unit/b11 - Apt B3: https://blueflo.tech/b/309-86-street-brooklyn/unit/b3 - Apt B4: https://blueflo.tech/b/309-86-street-brooklyn/unit/b4 - Apt C1: https://blueflo.tech/b/309-86-street-brooklyn/unit/c1 - Apt C11: https://blueflo.tech/b/309-86-street-brooklyn/unit/c11 - Apt C12: https://blueflo.tech/b/309-86-street-brooklyn/unit/c12 - Apt C2: https://blueflo.tech/b/309-86-street-brooklyn/unit/c2 - Apt C4: https://blueflo.tech/b/309-86-street-brooklyn/unit/c4 - Apt C5: https://blueflo.tech/b/309-86-street-brooklyn/unit/c5 - Apt C6: https://blueflo.tech/b/309-86-street-brooklyn/unit/c6 - Apt C7: https://blueflo.tech/b/309-86-street-brooklyn/unit/c7 - Apt C8: https://blueflo.tech/b/309-86-street-brooklyn/unit/c8 - Apt C9: https://blueflo.tech/b/309-86-street-brooklyn/unit/c9 - Apt D10: https://blueflo.tech/b/309-86-street-brooklyn/unit/d10 - Apt D12: https://blueflo.tech/b/309-86-street-brooklyn/unit/d12 - Apt D2: https://blueflo.tech/b/309-86-street-brooklyn/unit/d2 - Apt D4: https://blueflo.tech/b/309-86-street-brooklyn/unit/d4 - Apt D5: https://blueflo.tech/b/309-86-street-brooklyn/unit/d5 - Apt D6: https://blueflo.tech/b/309-86-street-brooklyn/unit/d6 - Apt D9: https://blueflo.tech/b/309-86-street-brooklyn/unit/d9 ## Registered with the city - 309 86 STREET REALTY LTD (CorporateOwner, Registration Contacts) - 309 86TH ST REALTY CORP (TaxLotOwner, PLUTO (tax lot data)) ## More - Every record behind this card: https://blueflo.tech/b/309-86-street-brooklyn/records - The same card as JSON: https://blueflo.tech/v1/buildings/309-86-street-brooklyn - Ask about any building from an assistant (MCP): https://blueflo.tech/mcp - Report something wrong: https://blueflo.tech/dispute?slug=309-86-street-brooklyn - How to use this data: https://blueflo.tech/llms.txt