511 W 143 St

Heat or hot waterApt 54 class B · HPD violation

Heat or hot waterApt 51 class C · closed · HPD violation

Show 46 more

Heat or hot waterApt 34 class C · closed · HPD violation

Heat or hot waterApt 4 complaint

Heat or hot waterApt 34 class C · closed · HPD violation

Heat or hot waterApt 33 class C · closed · HPD violation

Heat or hot waterApt 4 complaint

Heat or hot waterApt 61 class C · closed · HPD violation

Heat or hot waterApt 32 class C · closed · HPD violation

Heat or hot waterApt 21 class C · closed · HPD violation

2025 Nov

2025 Nov

Heat or hot waterApt BASEME complaint

Heat or hot waterApt B1 complaint

Heat or hot waterApt B1 complaint

Heat or hot waterApt B1 complaint

2023 Dec

Heat source

Boiler burning natural gas (Federal FST-60), registration current since Dec 2024

Clean Air Tracking System (boiler registrations), as of 2026-10-21 · See this building's boiler registrations on NYC Open Data →

Boiler inspection filings

Latest accepted inspection Aug 2026, defects reported: no

DOB NOW: Safety Boiler, as of 2026-10-21 · See the boiler filings at DOB →

What this counts

Accepted annual boiler inspection filings, any date

Boiler work permits

Latest boiler work permit 1992

DOB Permit Issuance (BIS), as of 2026-10-20

What this counts

DOB boiler permits (BIS and DOB NOW); a permit dates work, not the boiler's age

Heat and hot water complaints

32 heat or hot water complaints

Housing Maintenance Code Complaints and Problems, as of 2026-10-21 · See the complaints at HPD Online →

What this counts

HPD complaints, heat season 2025–26 (Oct 1–May 31)

Water and pipes

Issues on record · 28 complaints, 2024–2026 · 23 in the past year

What has happened here

Plumbing, leaksApt 54 complaint

LeaksApt 54 class B · HPD violation

Plumbing complaint

LeaksApt 33 class B · HPD violation

Show 32 more

LeaksApt 33 class B · HPD violation

LeaksApt 34 complaint

Plumbing complaint

LeaksApt B1 complaint

2025 Feb

LeaksApt 53 complaint

Plumbing complaint

LeaksApt 4 complaint

LeaksApt 54 complaint

LeaksApt 53 complaint

LeaksApt BASEME complaint

Water service line

Non-Lead (records)

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

Pests and cleanliness

Issues on record · 30 complaints, 2025–2026 · 25 in the past year

What has happened here

Mold, pestsApt 54 complaint

MoldApt 54 complaint

2026 Jun

Show 38 more

MoldApt 51 class B · HPD violation

PestsApt 51 class C · closed · HPD violation

PestsApt 33 class C · closed · HPD violation

MoldApt 51 complaint

Mold, pestsApt B complaint

PestsApt 61 class C · closed · HPD violation

Mold, pestsApt B1 complaint

MoldApt BASEME complaint

MoldApt B1 complaint

Fire and safety

1 resolved in 2026

What has happened here

Fire safetyApt B1 class C · closed · HPD violation

Electrical

11 complaints, 2024–2026 · 7 in the past year

What has happened here

Show 5 more

Flooding

No issues on record

FEMA flood zone

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

FEMA National Flood Hazard Layer, as of 2026-10-21

What this counts

Effective FIRM zones touching the building footprint

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

What this counts

Mapped ponding touching the building footprint

BasementWhole tax lot

Below grade

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

Elevators

1 complaint, 2025

What has happened here

Elevators complaint

Elevators

1 active elevator; latest periodic inspection Aug 2025

DOB NOW Elevator Safety Compliance, as of 2026-10-21 · See this building's elevators on NYC Open Data →

What this counts

Active elevator devices registered to this building ID

Rent and tenancy

On the state list

Rent stabilizationWhole tax lot

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

What this counts

The list doesn't say which apartments are stabilized, and being listed isn't proof of current status. For a specific apartment, request its rent history from HCR

Energy

ENERGY STAR score 100 (2024 report)

Energy and Water Data Disclosure (Local Law 84), as of 2025-11-25

What this counts

Letter grades are issued by the city under Local Law 33 and posted near the building entrance; Blueflo shows the reported score only

General condition and all records

HPD violations

63 open: 63 about building conditions — doors and windows (17), walls, floors and stairs (16), pests (12), heat or hot water (7); 19 immediately hazardous (class C). 25 further violations from 2026 were closed. 242 violations on record in all, 1998–2026 — the 148 most recent are listed here

Doors and windowsApt 54 class B

Doors and windowsApt 54 class B

Walls, floors and stairsApt 54 class B

Other conditionsApt 54 class B

Heat or hot waterApt 54 class B

Walls, floors and stairsApt 54 class C

Walls, floors and stairsApt 54 class B

Show 42 more

Walls, floors and stairsApt 54 class B

LeaksApt 54 class B

Walls, floors and stairsApt 54 class C

2026 Jun

Walls, floors and stairsApt 33 class B

Walls, floors and stairsApt 33 class A · closed

Doors and windowsApt 33 class A

Walls, floors and stairsApt 33 class A · closed

MoldApt 51 class B

PestsApt 51 class C · closed

Walls, floors and stairsApt 33 class B

Walls, floors and stairsApt 33 class A · closed

PestsApt 33 class C · closed

Doors and windowsApt 33 class B · closed

Doors and windowsApt 33 class B · closed

Other conditions class A · closed

Doors and windowsApt 33 class B · closed

Heat or hot waterApt 51 class C · closed

Heat or hot waterApt 34 class C · closed

Smoke or CO detectorsApt B1 class B · closed

Smoke or CO detectorsApt B1 class B · closed

Heat or hot waterApt 34 class C · closed

Heat or hot waterApt 33 class C · closed

PestsApt 61 class C · closed

Heat or hot waterApt 61 class C · closed

Heat or hot waterApt 32 class C · closed

Heat or hot waterApt 21 class C · closed

Fire safetyApt B1 class C · closed

and 13 more at the source

Housing Maintenance Code Violations, as of 2026-10-21 · Read these violations in full at HPD Online →

What this counts

Open HPD violations inspected in the last 10 years; class C = immediately hazardous. Paperwork = failure to file, notify or certify

Resident complaints to the city

45 paint or plaster, 34 heat or hot water, 28 pests, 28 plumbing, 26 general repairs, 24 doors or windows, 11 electrical, 9 floors or stairs, 6 safety, 5 appliances, 5 mold, 4 leaks, 1 elevators

General repairsApt 33

Doors or windows, floors or stairs, paint or plaster, plumbing, mold, pests, leaksApt 54

MoldApt 54

General repairs, pestsApt 33

General repairs, heat or hot water, pestsApt 33

Plumbing

General repairs, paint or plaster, plumbing, pestsApt 33

Electrical, general repairs, paint or plaster, plumbing, pestsApt 33

Show 89 more

PlumbingApt 33

Doors or windows, paint or plasterApt 33

General repairs, paint or plaster, plumbing, pestsApt 33

MoldApt 51

Doors or windows, general repairs, paint or plaster, plumbing, pestsApt 33

Electrical, general repairs, paint or plaster, plumbing, pestsApt 33

Floors or stairs, general repairs, paint or plaster, plumbing, pestsApt 33

Doors or windows, general repairs, heat or hot waterApt 33

Doors or windowsApt 33

Paint or plaster, plumbingApt 33

General repairs, paint or plaster, pestsApt 33

Doors or windows, general repairs, heat or hot water, paint or plaster, plumbing, pestsApt 33

Appliances, doors or windows, floors or stairs, mold, pestsApt B

Doors or windows, general repairs, paint or plaster, plumbing, pestsApt 33

Doors or windows, general repairs, heat or hot water, paint or plaster, plumbing, safety, pestsApt 33

Electrical, paint or plasterApt 33

Doors or windows, general repairs, paint or plaster, plumbing, pestsApt 33

PlumbingApt 33

Doors or windows, electrical, floors or stairs, general repairs, paint or plaster, safety, pestsApt 33

Doors or windows, general repairs, paint or plaster, pestsApt 33

Doors or windows, general repairs, heat or hot water, paint or plaster, plumbing, pestsApt 33

Electrical, floors or stairs, plumbingApt 33

Doors or windows, electrical, general repairs, heat or hot water, paint or plaster, safety, pestsApt 33

Heat or hot waterApt 4

Heat or hot waterApt 4

Doors or windows, general repairs, paint or plaster, plumbing, pestsApt 33

Doors or windows, general repairs, paint or plaster, plumbing, safety, pestsApt 33

Heat or hot waterApt 33

Paint or plasterApt 33

Doors or windows, electrical, paint or plaster, plumbingApt 33

Plumbing

Doors or windows, floors or stairs, general repairs, heat or hot water, paint or plaster, safety, pestsApt 33

Appliances, floors or stairs, general repairs, paint or plaster, mold, pests, leaksApt B1

Floors or stairs, general repairs, paint or plaster, pestsApt 33

Heat or hot water, pestsApt 33

Floors or stairs, heat or hot water, paint or plaster, pestsApt 33

Heat or hot water, paint or plaster, plumbingApt 33

Doors or windows, electrical, safetyApt 33

2025 Feb

Paint or plaster, leaksApt 53

Electrical, heat or hot water, paint or plaster, pestsApt 33

Doors or windows, elevators

Heat or hot water, plumbing

Appliances, doors or windows, electrical, heat or hot water, pestsApt 33

Paint or plaster, plumbingApt 33

Heat or hot waterApt 33

Paint or plaster, mold, leaksApt 4

Paint or plaster, leaksApt 54

Paint or plaster, mold, leaksApt 53

Appliances

Doors or windowsApt B

Appliances, doors or windows, floors or stairsApt B1

General repairsApt BASEME

General repairsApt BASEME

Floors or stairsApt BASEME

Doors or windowsApt BASEME

Doors or windowsApt BASEME

MoldApt B1

Doors or windows, floors or stairs, general repairs, heat or hot water, mold, leaksApt BASEME

Doors or windows, floors or stairs, general repairs, heat or hot waterApt B1

Heat or hot waterApt B1

Floors or stairsApt B1

Heat or hot waterApt B1

MoldApt B1

Paint or plasterApt B1

2023 Dec

Housing Maintenance Code Complaints and Problems, as of 2026-10-21 · See the complaints at HPD Online →

What this counts

HPD complaints received in the last 2 years; the list below is every complaint on record for the last three years

Permit history

15 permits since 1990

2025 Jun

Plumbing permit

2023 Nov

2023 Jul

2023 Jun

Plumbing permit

2023 Jun

2015 Oct

Plumbing permit, General construction permit

2015 Aug

Scaffold permit

Show 1 more

2013 Jul

and 6 more at the source

DOB NOW: Build – Approved Permits, as of 2026-10-21 · See every permit at DOB →

What this counts

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

SalesWhole tax lot

Ownership transferred Jun 2021, no sale price

NYC Citywide Annualized Calendar Sales, as of 2026-06-09

What this counts

Department of Finance sales files, 2016 on

Everything else on record

General repairsApt 33 complaint

Other conditionsApt 54 class B · HPD violation

Doors or windows, floors or stairs, paint or plasterApt 54 complaint

General repairsApt 33 complaint

General repairsApt 33 complaint

Show 58 more

Doors or windows, paint or plasterApt 33 complaint

Doors or windows, general repairs, paint or plasterApt 33 complaint

Floors or stairs, general repairs, paint or plasterApt 33 complaint

Doors or windows, general repairsApt 33 complaint

Doors or windowsApt 33 complaint

Doors or windows, general repairs, paint or plasterApt 33 complaint

Other conditions class A · closed · HPD violation

Appliances, doors or windows, floors or stairsApt B complaint

Doors or windows, general repairs, paint or plasterApt 33 complaint

Smoke or CO detectorsApt B1 class B · closed · HPD violation

Smoke or CO detectorsApt B1 class B · closed · HPD violation

Doors or windows, general repairs, paint or plaster, safetyApt 33 complaint

Doors or windows, general repairs, paint or plasterApt 33 complaint

Doors or windows, floors or stairs, general repairs, paint or plaster, safetyApt 33 complaint

Doors or windows, general repairs, paint or plasterApt 33 complaint

Doors or windows, general repairs, paint or plasterApt 33 complaint

Floors or stairsApt 33 complaint

Doors or windows, general repairs, paint or plaster, safetyApt 33 complaint

Doors or windows, general repairs, paint or plasterApt 33 complaint

Doors or windows, general repairs, paint or plaster, safetyApt 33 complaint

Doors or windows, paint or plasterApt 33 complaint

Doors or windows, floors or stairs, general repairs, paint or plaster, safetyApt 33 complaint

Appliances, floors or stairs, general repairs, paint or plasterApt B1 complaint

General repairsApt B complaint

2025 Oct

General repairsApt B complaint

Floors or stairs, general repairs, paint or plasterApt 33 complaint

Floors or stairs, paint or plasterApt 33 complaint

Doors or windows complaint

Doors or windows, safetyApt 33 complaint

2025 Feb

Paint or plasterApt 53 complaint

Doors or windows complaint

Appliances, doors or windowsApt 33 complaint

AppliancesApt 33 complaint

Paint or plasterApt 4 complaint

Paint or plasterApt 54 complaint

Paint or plasterApt 53 complaint

Appliances complaint

Doors or windowsApt B complaint

Appliances, doors or windows, floors or stairsApt B1 complaint

General repairsApt BASEME complaint

General repairsApt BASEME complaint

Floors or stairsApt BASEME complaint

Doors or windowsApt BASEME complaint

Doors or windowsApt BASEME complaint

Doors or windows, floors or stairs, general repairsApt BASEME complaint

Doors or windows, floors or stairs, general repairsApt B1 complaint

Floors or stairsApt B1 complaint