Building health · MANHATTAN, NY

175 W 85 St

built 1890 · 7 stories · 30 apartments
Also known as 521 Amsterdam Ave, 523 Amsterdam Ave, 525 Amsterdam Ave, 527 Amsterdam Ave — one building, several doors.

Structure and facade

Issues on record
What has happened here
2026 Mar
General construction permit
2021 Sep
General construction permit
2021 Feb
General construction permit
2018 Aug
General construction permit
2018 Aug
Construction fence permit
2012 Dec
General construction permit
Facade rating

Safe with a repair and maintenance program (cycle 10, filed May 2025)

DOB NOW: Safety – Facades Compliance Filings, as of 2026-10-18 · See the facade filings at DOB →
What this counts

Most recent facade (FISP) filing in the latest 5-year cycle

Landmark statusWhole tax lot

In the Upper West Side / Central Park West Historic District

PLUTO (tax lot data), as of 2026-08-24
  • Sidewalk shed and scaffoldingfoundNo active shed permit; permits since Jul 2018, last expired Jan 2022

Flooding

Issues on record
FEMA flood zone

Outside FEMA's 1% annual-chance flood zone: X

FEMA National Flood Hazard Layer, as of 2026-10-19
What this counts

Effective FIRM zones touching the building footprint

Stormwater flooding

Extreme storm, 2080 sea levels: Deep and contiguous flooding (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
What this counts

Mapped ponding touching the building footprint

BasementWhole tax lot

Below grade

PLUTO (tax lot data), as of 2026-08-24

Heat and hot water

Issues on record, most recently 2023
What has happened here
2023 Jun
Low Pressure Boiler DOB violation
2023 Jun
Low Pressure Boiler DOB violation
2011 Dec
Heating/ventilation permit
Heat source

Boiler burning natural gas (H.B. Smith G28-6), registration current since Oct 2024

Clean Air Tracking System (boiler registrations), as of 2026-10-19 · See this building's boiler registrations on NYC Open Data →
Boiler inspection filings

Latest accepted inspection Apr 2026, defects reported: no

DOB NOW: Safety Boiler, as of 2026-10-17 · See the boiler filings at DOB →
What this counts

Accepted annual boiler inspection filings, any date

  • Boiler work permitsno recordNo boiler work permits on record
  • Heat and hot water complaintsfound0 heat or hot water complaints

Water and pipes

No issues on record
What has happened here
2012 Dec
Plumbing permit
Water service line

Non-Lead (records)

Lead Service Line Location Coordinates, as of 2026-01-30

Fire and safety

No issues on record
What has happened here
2013 May
Sprinklers permit

Elevators

Issues on record, most recently 2025
What has happened here
2025 Oct
VT-CAT1-CO Elevators DOB violation
1997 Jan
Local Law 10/81 - Elevator never closed · DOB violation
Elevators

1 active elevator; latest periodic inspection Feb 2026

DOB NOW Elevator Safety Compliance, as of 2026-10-18 · See this building's elevators on NYC Open Data →
What this counts

Active elevator devices registered to this building ID

General condition and all records

DOB violations

4 open: 2 about building conditions, 2 about filings or paperwork

2025 Oct
VT-CAT1-CO Elevators
2023 Jun
Low Pressure Boiler
2023 Jun
Low Pressure Boiler
1997 Jan
Local Law 10/81 - Elevator never closed
DOB Violations, as of 2026-10-18 · Read these violations in full at DOB →
What this counts

Open DOB, ECB and DOB NOW Safety violations, any date, one per violation. ECB class 1 = hazardous, class 2 = major

Permit history

12 permits since 1990

2026 Mar
General construction permit
2021 Sep
Structural permit, General construction permit
2021 Feb
General construction permit
2018 Aug
General construction permit
2018 Aug
Construction fence permit
2013 May
Sprinklers permit, Plumbing permit, General construction permit
2011 Dec
Heating/ventilation permit
and 5 more at the source
DOB NOW: Build – Approved Permits, as of 2026-10-17 · See every permit at DOB →
What this counts

DOB permits issued (DOB NOW and legacy BIS), one per job and work type; excludes sheds

Everything else on record
2021 Sep
Structural permit
  • HPD violationsfound0 open
  • Resident complaints to the cityfoundno complaints

Nothing on record

Rent and tenancyNot on the state list
  • Rent stabilizationno recordNot on the state's 2024 list. Owners who register late or not at all are missing, so ask HCR about a specific apartment
Gasno record
  • Gas pipingno recordNo open gas piping filing violations. Inspection results themselves are not published
Energyno record
  • Energynot requiredNot required: energy reporting applies to buildings over 25,000 sq ft

Sources

23 datasets

FEMA

NYC DCP

NYC DEP

NYC DEP / Mayor's Office

NYC DOB

NYC DOB / Mayor's Office

NYC HPD

NYC OTI

NYC Rent Guidelines Board / NYS HCR

Each date is when we last checked that dataset, not when the record itself was created.

Every row shows the record it came from and the date it was last checked.
These are city records, not an inspection by Blueflo. Every item shows its source and the date it was last checked.
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Not an inspection and not a warranty. May not be used for tenant screening — terms of use · privacy.