# 520 W 43 St, Manhattan

What New York City's public records say about this building. Page: https://blueflo.tech/b/520-west-43-street-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

1 open immediately hazardous (class C) HPD violation about pests (Housing Maintenance Code Violations, as of 2026-10-20)

## The building

- **Year built:** 1996 (PLUTO (tax lot data), as of 2026-08-24)
- **Stories:** 33 (Buildings Subject to HPD Jurisdiction, as of 2026-08-12)
- **Homes:** 375 (Buildings Subject to HPD Jurisdiction, as of 2026-08-12)

## Worth knowing

- 1 open immediately hazardous (class C) HPD violation about pests
- 7 heat or hot water complaints filed with the city last winter
- Basement on record, and the city's stormwater map shows flooding here in at least one storm scenario
- 5 open HPD violations about building conditions

## Also on record

- City stormwater map shows nuisance flooding at this building in the Extreme storm, 2080 sea levels scenario

## 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 May 2026 with no defects reported (DOB NOW: Safety Boiler, as of 2026-10-20)
- Facade filed as safe (Feb 2024) (DOB NOW: Safety – Facades Compliance Filings, as of 2026-10-20)
- Outside FEMA's 1% annual-chance flood zone (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 May 2026, defects reported: no (DOB NOW: Safety Boiler, as of 2026-10-20)
- **Facade rating:** Safe (cycle 9, filed Feb 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: Nuisance flooding (4 in. to 1 ft); 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:** 5 open: 5 about building conditions — walls, floors and stairs (4), pests (1); 1 immediately hazardous (class C). 3 further violations from 2025–2026 were closed. 40 violations on record in all, 2013–2026 — the 8 most recent are listed here (Housing Maintenance Code Violations, as of 2026-10-20)
- **DOB violations:** 0 open (DOB Violations, as of 2026-10-20)
- **Heat and hot water complaints:** 7 heat or hot water complaints (Housing Maintenance Code Complaints and Problems, as of 2026-10-20)
- **Resident complaints to the city:** 8 general repairs, 7 heat or hot water, 4 mold, 3 electrical, 3 pests, 2 plumbing, 1 safety (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); listed for this tax lot (1 addresses), not under this building's address (Rent Stabilized Building Lists (2024 HCR registrations), as of 2025-11-30)
- **Heat source:** Boiler burning natural gas (Cleaverbrooks CB400-300-015), registration current since Jul 2024 (Clean Air Tracking System (boiler registrations), as of 2026-10-21)
- **Boiler work permits:** Latest boiler work permit 1997 (DOB Permit Issuance (BIS), as of 2026-10-19)
- **Elevators:** 5 active elevators; latest periodic inspection Mar 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 25 (2024 report), reported for all of Dermot - 520 West 43rd Street (Landon) (2 buildings) (Energy and Water Data Disclosure (Local Law 84), as of 2025-11-25)

## Permits and work

- **Permit history:** 79 permits since 1990 (DOB NOW: Build – Approved Permits, as of 2026-10-20)
- **Sidewalk shed and scaffolding:** No active shed permit; permits since Mar 2017, last expired Dec 2024 (DOB NOW: Build – Approved Permits, as of 2026-10-20)
- **Landmark status:** Not in a historic district on record (PLUTO (tax lot data), as of 2026-08-24)

## By apartment

9 of 375 apartments named in a city record:

- Apt 1C: https://blueflo.tech/b/520-west-43-street-manhattan/unit/1c
- Apt 6N: https://blueflo.tech/b/520-west-43-street-manhattan/unit/6n
- Apt 15G: https://blueflo.tech/b/520-west-43-street-manhattan/unit/15g
- Apt 16B: https://blueflo.tech/b/520-west-43-street-manhattan/unit/16b
- Apt 20G: https://blueflo.tech/b/520-west-43-street-manhattan/unit/20g
- Apt 20H: https://blueflo.tech/b/520-west-43-street-manhattan/unit/20h
- Apt 22E: https://blueflo.tech/b/520-west-43-street-manhattan/unit/22e
- Apt 22H: https://blueflo.tech/b/520-west-43-street-manhattan/unit/22h
- Apt 23B: https://blueflo.tech/b/520-west-43-street-manhattan/unit/23b

## Registered with the city

- DEROMOT REALTY MANAGEMENT COMPANY (Agent, Registration Contacts)
- 520 WEST 43RD STREET REIT LLC (CorporateOwner, Registration Contacts)
- 520 WEST 43RD STREET REIT, LLC (TaxLotOwner, PLUTO (tax lot data))

## More

- Every record behind this card: https://blueflo.tech/b/520-west-43-street-manhattan/records
- The same card as JSON: https://blueflo.tech/v1/buildings/520-west-43-street-manhattan
- Ask about any building from an assistant (MCP): https://blueflo.tech/mcp
- Report something wrong: https://blueflo.tech/dispute?slug=520-west-43-street-manhattan
- How to use this data: https://blueflo.tech/llms.txt