# 424 Amsterdam Ave, Manhattan

What New York City's public records say about this building. Page: https://blueflo.tech/b/424-amsterdam-avenue-manhattan

> These are city records, not an inspection by Blueflo. Every item shows its source and the date it was last checked.

## In one line

2 open immediately hazardous (class C) HPD violations about pests (Housing Maintenance Code Violations, as of 2026-10-19)

## The building

- **Year built:** 1891 (PLUTO (tax lot data), as of 2026-08-24)
- **Stories:** 5 (Buildings Subject to HPD Jurisdiction, as of 2026-08-12)
- **Homes:** 10 (Buildings Subject to HPD Jurisdiction, as of 2026-08-12)

## Worth knowing

- 2 open immediately hazardous (class C) HPD violations about pests
- 1 hazardous (class 1) building code violation from 2023 is still open; the city has no certification of the fix
- City stormwater map shows deep flooding (1 ft+) at this building in a moderate storm today
- Basement on record, and the city's stormwater map shows flooding here in at least one storm scenario
- 15 open HPD violations about building conditions

## Also on record

- City stormwater map shows deep and contiguous flooding at this building in the Extreme storm, 2080 sea levels scenario
- In the Upper West Side / Central Park West Historic District: exterior changes need Landmarks Commission approval

## Clean in the records

- Water service line on record as non-lead (records) (Lead Service Line Location Coordinates, as of 2026-01-30)
- Boiler inspection filed Mar 2026 with no defects reported (DOB NOW: Safety Boiler, as of 2026-10-17)
- Outside FEMA's 1% annual-chance flood zone (FEMA National Flood Hazard Layer, as of 2026-10-19)
- No heat or hot water complaints filed last winter (Housing Maintenance Code Complaints and Problems, as of 2026-10-19)

## Building systems

- **Boiler inspection filings:** Latest accepted inspection Mar 2026, defects reported: no (DOB NOW: Safety Boiler, as of 2026-10-17)
- **Facade rating:** Not required: facade inspections apply only to buildings taller than 6 stories (DOB NOW: Safety – Facades Compliance Filings, as of 2026-10-18)
- **Water service line:** Non-Lead (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 2026-10-19)
- **Stormwater flooding:** Extreme storm, 2080 sea levels: Deep and contiguous flooding (1 ft+); Moderate storm, 2050 sea levels: Deep and contiguous flooding (1 ft+); Moderate storm, today's sea levels: Deep and contiguous flooding (1 ft+); 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:** 15 open: 15 about building conditions — doors and windows (3), pests (3), leaks (2), smoke or CO detectors (2); 2 immediately hazardous (class C). Also 18 older records from 1997–2016 never closed. 1 further violation from 2023 was closed. 77 violations on record in all, 1997–2023 — the 34 most recent are listed here (Housing Maintenance Code Violations, as of 2026-10-19)
- **DOB violations:** 5 open: 4 about building conditions, 1 older than 10 years (DOB Violations, as of 2026-10-18)
- **Heat and hot water complaints:** 0 heat or hot water complaints (Housing Maintenance Code Complaints and Problems, as of 2026-10-19)
- **Resident complaints to the city:** 2 doors or windows, 2 plumbing, 1 floors or stairs, 1 paint or plaster, 1 pests (Housing Maintenance Code Complaints and Problems, as of 2026-10-19)

## More systems

- **Rent stabilization:** Not on the state's 2024 list. Owners who register late or not at all are missing, so ask HCR about a specific apartment (Rent Stabilized Building Lists (2024 HCR registrations), as of 2025-11-30)
- **Heat source:** Boiler burning No. 2 oil (H.B. Smith 19HE-S/W-6), registration current since Jul 2024 (Clean Air Tracking System (boiler registrations), as of 2026-10-19)
- **Boiler work permits:** Latest boiler work permit 2015 (3 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 2026-10-18)
- **Gas piping:** No open gas piping filing violations. Inspection results themselves are not published (DOB Safety Violations, as of 2026-10-18)
- **Energy:** Not required: energy reporting applies to buildings over 25,000 sq ft (Energy and Water Data Disclosure (Local Law 84), as of 2025-11-25)

## Permits and work

- **Permit history:** 41 permits since 1990 (DOB NOW: Build – Approved Permits, as of 2026-10-17)
- **Sidewalk shed and scaffolding:** No active shed permit (DOB NOW: Build – Approved Permits, as of 2026-10-17)
- **Landmark status:** In the Upper West Side / Central Park West Historic District (PLUTO (tax lot data), as of 2026-08-24)

## By apartment

4 of 10 apartments named in a city record:

- Apt 3S: https://blueflo.tech/b/424-amsterdam-avenue-manhattan/unit/3s
- Apt 4S: https://blueflo.tech/b/424-amsterdam-avenue-manhattan/unit/4s
- Apt 5S: https://blueflo.tech/b/424-amsterdam-avenue-manhattan/unit/5s
- Apt 33S: https://blueflo.tech/b/424-amsterdam-avenue-manhattan/unit/33s

## Registered with the city

- SALON REALTY CORP (Agent, Registration Contacts)
- 420-428 AMSTERDAM LLC (CorporateOwner, Registration Contacts)
- Individual owner (name not shown) (TaxLotOwner, PLUTO (tax lot data))

## More

- Every record behind this card: https://blueflo.tech/b/424-amsterdam-avenue-manhattan/records
- The same card as JSON: https://blueflo.tech/v1/buildings/424-amsterdam-avenue-manhattan
- Ask about any building from an assistant (MCP): https://blueflo.tech/mcp
- Report something wrong: https://blueflo.tech/dispute?slug=424-amsterdam-avenue-manhattan
- How to use this data: https://blueflo.tech/llms.txt