# 405 Troy Ave, Brooklyn What New York City's public records say about this building. Page: https://blueflo.tech/b/405-troy-avenue-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 409 Troy Ave, 411 Troy Ave, 415 Troy Ave, 840 Montgomery St: one building, several doors, and this card covers all of them. ## In one line 1 open immediately hazardous (class C) HPD violation about walls, floors and stairs (Housing Maintenance Code Violations, as of 2026-10-19) ## The building - **Year built:** 1925 (PLUTO (tax lot data), as of 2026-08-24) - **Stories:** 4 (Buildings Subject to HPD Jurisdiction, as of 2026-08-12) - **Homes:** 38 (Buildings Subject to HPD Jurisdiction, as of 2026-08-12) ## Worth knowing - 1 open immediately hazardous (class C) HPD violation about walls, floors and stairs - City records list the water service line's material as unknown (lead not ruled out) - 5 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 - Boiler inspection filed Aug 2026 with no defects reported (DOB NOW: Safety Boiler, as of 2026-10-19) - Outside FEMA's 1% annual-chance flood zone; no mapped stormwater flooding (FEMA National Flood Hazard Layer, as of 2026-10-20) ## Building systems - **Boiler inspection filings:** Latest accepted inspection Aug 2026, defects reported: no (DOB NOW: Safety Boiler, as of 2026-10-19) - **Facade rating:** Not required: facade inspections apply only to buildings taller than 6 stories (DOB NOW: Safety – Facades Compliance Filings, as of 2026-10-19) - **Water service line:** Unknown - Lead Status Unknown (records) (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 2026-10-20) - **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:** 9 open: 5 about building conditions — other conditions (3), fire safety (1), walls, floors and stairs (1); 1 immediately hazardous (class C), 4 about paperwork or notices. Also 2 older records from 1991 never closed. 25 further violations from 2023–2025 were closed. 156 violations on record in all, 1991–2026 — the 44 most recent are listed here (Housing Maintenance Code Violations, as of 2026-10-19) - **DOB violations:** 4 open: 2 about building conditions, 2 about filings or paperwork (DOB Violations, as of 2026-10-19) - **Heat and hot water complaints:** 4 heat or hot water complaints (Housing Maintenance Code Complaints and Problems, as of 2026-10-20) - **Resident complaints to the city:** 12 heat or hot water, 3 pests, 3 unsanitary conditions, 2 leaks, 1 floors or stairs, 1 mold, 1 paint or plaster (Housing Maintenance Code Complaints and Problems, as of 2026-10-20) ## 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 (Rockmills MP-60), registration current since Jan 2025 (Clean Air Tracking System (boiler registrations), as of 2026-10-20) - **Boiler work permits:** No boiler work permits on record (DOB Permit Issuance (BIS), as of 2026-10-19) - **Elevators:** No elevators registered to this building (DOB NOW Elevator Safety Compliance, as of 2026-10-19) - **Gas piping:** No open gas piping filing violations. Inspection results themselves are not published (DOB Safety Violations, as of 2026-10-19) - **Energy:** ENERGY STAR score 3 (2024 report) (Energy and Water Data Disclosure (Local Law 84), as of 2025-11-25) ## Permits and work - **Permit history:** 6 permits since 1990 (DOB NOW: Build – Approved Permits, as of 2026-10-19) - **Sidewalk shed and scaffolding:** No sidewalk shed permits on record (DOB NOW: Build – Approved Permits, as of 2026-10-19) - **Landmark status:** Not in a historic district on record (PLUTO (tax lot data), as of 2026-08-24) ## By apartment 19 of 38 apartments named in a city record: - Apt 1C: https://blueflo.tech/b/405-troy-avenue-brooklyn/unit/1c - Apt 2A: https://blueflo.tech/b/405-troy-avenue-brooklyn/unit/2a - Apt 2C: https://blueflo.tech/b/405-troy-avenue-brooklyn/unit/2c - Apt 3A: https://blueflo.tech/b/405-troy-avenue-brooklyn/unit/3a - Apt 5C: https://blueflo.tech/b/405-troy-avenue-brooklyn/unit/5c - Apt 6B: https://blueflo.tech/b/405-troy-avenue-brooklyn/unit/6b - Apt 7A: https://blueflo.tech/b/405-troy-avenue-brooklyn/unit/7a - Apt 7B: https://blueflo.tech/b/405-troy-avenue-brooklyn/unit/7b - Apt 7C: https://blueflo.tech/b/405-troy-avenue-brooklyn/unit/7c - Apt 8B: https://blueflo.tech/b/405-troy-avenue-brooklyn/unit/8b - Apt 10A: https://blueflo.tech/b/405-troy-avenue-brooklyn/unit/10a - Apt 16B: https://blueflo.tech/b/405-troy-avenue-brooklyn/unit/16b - Apt 17B: https://blueflo.tech/b/405-troy-avenue-brooklyn/unit/17b - Apt A4: https://blueflo.tech/b/405-troy-avenue-brooklyn/unit/a4 - Apt A8: https://blueflo.tech/b/405-troy-avenue-brooklyn/unit/a8 - Apt B14: https://blueflo.tech/b/405-troy-avenue-brooklyn/unit/b14 - Apt B5: https://blueflo.tech/b/405-troy-avenue-brooklyn/unit/b5 - Apt C11: https://blueflo.tech/b/405-troy-avenue-brooklyn/unit/c11 - Apt C9: https://blueflo.tech/b/405-troy-avenue-brooklyn/unit/c9 ## Registered with the city - MONTGOMERY 840 LLC (Agent, Registration Contacts) - MONTGOMERY 840 LLC (CorporateOwner, Registration Contacts) - MONTGOMERY 840 LLC (TaxLotOwner, PLUTO (tax lot data)) ## More - Every record behind this card: https://blueflo.tech/b/405-troy-avenue-brooklyn/records - The same card as JSON: https://blueflo.tech/v1/buildings/405-troy-avenue-brooklyn - Ask about any building from an assistant (MCP): https://blueflo.tech/mcp - Report something wrong: https://blueflo.tech/dispute?slug=405-troy-avenue-brooklyn - How to use this data: https://blueflo.tech/llms.txt