# 257 W 101 St, Manhattan What New York City's public records say about this building. Page: https://blueflo.tech/b/257-west-101-street-manhattan > These are city records, not an inspection by Blueflo. Every item shows its source and the date it was last checked. Also known as 840 W End Ave: one building, several doors, and this card covers all of them. ## In one line 11 open immediately hazardous (class C) HPD violations about pests and fire safety and mold (Housing Maintenance Code Violations, as of 2026-10-20) ## The building - **Year built:** 1904 (PLUTO (tax lot data), as of 2026-08-24) - **Stories:** 6 (Buildings Subject to HPD Jurisdiction, as of 2026-08-12) - **Homes:** 40 (Buildings Subject to HPD Jurisdiction, as of 2026-08-12) ## Worth knowing - 11 open immediately hazardous (class C) HPD violations about pests and fire safety and mold - 2 hazardous (class 1) building code violations from 2019 are still open - 2 open major (class 2) building code violations from 2017–2019 - 80 open HPD violations about building conditions ## Also on record - On the state's list of buildings with rent-stabilized apartments (2024 registrations) - In the Riverside-West End Historic District Extension II: exterior changes need Landmarks Commission approval ## Clean in the records - Water service line on record as non-lead (field inspection) (Lead Service Line Location Coordinates, as of 2026-01-30) - Boiler inspection filed Nov 2025 with no defects reported (DOB NOW: Safety Boiler, as of 2026-10-20) - Facade filed as safe (Jul 2024) (DOB NOW: Safety – Facades Compliance Filings, as of 2026-10-20) - Outside FEMA's 1% annual-chance flood zone; no mapped stormwater flooding (FEMA National Flood Hazard Layer, as of 2026-10-21) - Elevator periodic inspection filed within the last year (DOB NOW Elevator Safety Compliance, as of 2026-10-20) ## Building systems - **Boiler inspection filings:** Latest accepted inspection Nov 2025, defects reported: no (DOB NOW: Safety Boiler, as of 2026-10-20) - **Facade rating:** Safe (cycle 9, filed Jul 2024) (DOB NOW: Safety – Facades Compliance Filings, as of 2026-10-20) - **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 2026-10-21) - **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:** 80 open: 80 about building conditions — walls, floors and stairs (35), leaks (9), pests (7), fire safety (6); 11 immediately hazardous (class C). Also 1 older record from 2014 never closed. 18 further violations from 2023–2026 were closed. 234 violations on record in all, 1994–2026 — the 99 most recent are listed here (Housing Maintenance Code Violations, as of 2026-10-20) - **DOB violations:** 7 open: 6 about building conditions, 1 about filings or paperwork (DOB Violations, as of 2026-10-20) - **Heat and hot water complaints:** 2 heat or hot water complaints (Housing Maintenance Code Complaints and Problems, as of 2026-10-20) - **Resident complaints to the city:** 12 plumbing, 8 leaks, 5 floors or stairs, 5 paint or plaster, 4 heat or hot water, 3 electrical, 2 doors or windows, 2 mold, 1 general repairs, 1 safety, 1 unsanitary conditions (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. 4 oil (Eastmond ESP-100), registration expired since Apr 2019 (Clean Air Tracking System (boiler registrations), as of 2026-10-21) - **Boiler work permits:** Latest boiler work permit 1998 (DOB Permit Issuance (BIS), as of 2026-10-19) - **Elevators:** 1 active elevator; latest periodic inspection Jul 2026 (DOB NOW Elevator Safety Compliance, as of 2026-10-20) - **Gas piping:** No open gas piping filing violations. Inspection results themselves are not published (DOB Safety Violations, as of 2026-10-20) - **Energy:** ENERGY STAR score 83 (2024 report) (Energy and Water Data Disclosure (Local Law 84), as of 2025-11-25) ## Permits and work - **Permit history:** 29 permits since 1990 (DOB NOW: Build – Approved Permits, as of 2026-10-20) - **Sidewalk shed and scaffolding:** No active shed permit; permits since Jan 2017, last expired Jan 2018 (DOB NOW: Build – Approved Permits, as of 2026-10-20) - **Landmark status:** In the Riverside-West End Historic District Extension II (PLUTO (tax lot data), as of 2026-08-24) ## By apartment 7 of 40 apartments named in a city record: - Apt 2B: https://blueflo.tech/b/257-west-101-street-manhattan/unit/2b - Apt 2D: https://blueflo.tech/b/257-west-101-street-manhattan/unit/2d - Apt 3BB: https://blueflo.tech/b/257-west-101-street-manhattan/unit/3bb - Apt 4B: https://blueflo.tech/b/257-west-101-street-manhattan/unit/4b - Apt 4C: https://blueflo.tech/b/257-west-101-street-manhattan/unit/4c - Apt 5B: https://blueflo.tech/b/257-west-101-street-manhattan/unit/5b - Apt 6B: https://blueflo.tech/b/257-west-101-street-manhattan/unit/6b ## Registered with the city - GM WEST END MANAGEMENT LLC (Agent, Registration Contacts) - THOR 840 WEST END AVENUE LLC (CorporateOwner, Registration Contacts) - THOR 840 WEST END AVENUE LLC (TaxLotOwner, PLUTO (tax lot data)) ## More - Every record behind this card: https://blueflo.tech/b/257-west-101-street-manhattan/records - The same card as JSON: https://blueflo.tech/v1/buildings/257-west-101-street-manhattan - Ask about any building from an assistant (MCP): https://blueflo.tech/mcp - Report something wrong: https://blueflo.tech/dispute?slug=257-west-101-street-manhattan - How to use this data: https://blueflo.tech/llms.txt