2171 Madison Ave

Walls, floors and stairsApt 9H class B · HPD violation

Walls, floors and stairsApt 9H class C · HPD violation

Walls, floors and stairsApt 9H class B · HPD violation

Doors and windowsApt 9H class B · HPD violation

Doors and windowsApt 9H class B · HPD violation

Walls, floors and stairsApt 9H class B · HPD violation

Show 15 more

Walls, floors and stairsApt 9H class B · HPD violation

Walls, floors and stairsApt 4G class B · HPD violation

Doors and windows class B · HPD violation

Walls, floors and stairsApt 2C class B · HPD violation

Doors and windowsApt 1H class B · HPD violation

Walls, floors and stairsApt 1H class B · closed · HPD violation

Walls, floors and stairsApt 1H class B · closed · HPD violation

Construction class - 3 · DOB violation

2023 Feb

No Report And / Or Late Filing (Facade) DOB violation

2020 Dec

2013 Oct

2012 Oct

2011 Aug

2010 Sep

2008 Feb

Facade ratingfoundNo Report Filed (cycle 9)
Sidewalk shed and scaffoldingfoundNo active shed permit; permits since Apr 2021, last expired Apr 2022
Landmark statusno recordNot in a historic district on record

Flooding

Issues on record

FEMA flood zone

In a FEMA special flood hazard area: AE, X (0.2% annual chance)

FEMA National Flood Hazard Layer, as of 2026-10-20

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

Heat and hot water

Issues on record · 78 complaints, 2024–2026 · 37 in the past year

What has happened here

Heat or hot waterApt 1G complaint

Heat or hot waterApt 1G complaint

Boilers class - 3 · DOB violation

Show 106 more

Heat or hot waterApt 9H complaint

Heat or hot waterApt 8H complaint

Heat or hot waterApt 8H complaint

Heat or hot waterApt 10A complaint

Heat or hot waterApt 3E complaint

Heat or hot waterApt 5D complaint

Heat or hot waterApt 6D complaint

Heat or hot waterApt BASEME complaint

Heat or hot waterApt 4D complaint

Heat or hot waterApt 1E complaint

Heat or hot waterApt 9A complaint

Heat or hot waterApt 6D complaint

Heat or hot waterApt 6D complaint

Heating/ventilation permit

2012 Oct

Heat and hot water complaints

39 heat or hot water complaints

Housing Maintenance Code Complaints and Problems, as of 2026-10-20 · See the complaints at HPD Online →

What this counts

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

Heat sourceno recordNo boiler registration or district steam on record
Boiler inspection filingsno recordNo boiler filings under this building's ID
Boiler work permitsno recordNo boiler work permits on record

Water and pipes

Issues on record · 41 complaints, 2024–2026 · 12 in the past year

What has happened here

PlumbingApt 9H class B · HPD violation

Plumbing, leaksApt 9H complaint

PlumbingApt 9H class B · HPD violation

LeaksApt 2C class B · HPD violation

PlumbingApt 12H complaint

LeaksApt 5H complaint

Show 44 more

PlumbingApt 1G complaint

PlumbingApt 1G complaint

LeaksApt 2C complaint

PlumbingApt 12E complaint

Plumbing, leaksApt 1B complaint

PlumbingApt 4D complaint

PlumbingApt 10A complaint

PlumbingApt 2C complaint

Plumbing, leaksApt 3H complaint

LeaksApt 2C complaint

PlumbingApt 4B complaint

Plumbing, leaksApt 9H complaint

PlumbingApt 9H complaint

LeaksApt 2C complaint

LeaksApt 1B complaint

LeaksApt 3H complaint

LeaksApt 4B complaint

LeaksApt 3H complaint

LeaksApt 4D complaint

PlumbingApt 1E complaint

PlumbingApt 6C complaint

LeaksApt 1A complaint

LeaksApt 3H complaint

LeaksApt 4B complaint

LeaksApt 4B complaint

PlumbingApt 12H complaint

LeaksApt 11E complaint

LeaksApt 1A complaint

LeaksApt 11E complaint

PlumbingApt 6B complaint

PlumbingApt 4B complaint

PlumbingApt 1E complaint

PlumbingApt 2F complaint

PlumbingApt 2F complaint

2024 Sep

PlumbingApt 9D complaint

PlumbingApt 1C complaint

LeaksApt 1C complaint

PlumbingApt 9D complaint

Water service lineWhole tax lot

Non-Lead (statistical analysis/predictive model)

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

Pests and cleanliness

Issues on record · 40 complaints, 2024–2026 · 15 in the past year

What has happened here

PestsApt 9H class C · HPD violation

PestsApt 9H class C · HPD violation

MoldApt 9H class B · HPD violation

Mold, pestsApt 9H complaint

PestsApt 1B complaint

PestsApt 2G class C · HPD violation

Show 48 more

MoldApt 9H complaint

PestsApt 2G complaint

Unsanitary conditions, pestsApt 1B complaint

Pests complaint

PestsApt 5H complaint

Pests class A · paperwork · closed · HPD violation

Unsanitary conditionsApt 1G complaint

Unsanitary conditions, pestsApt 1G complaint

Unsanitary conditionsApt 1G complaint

PestsApt 2G complaint

PestsApt 12F complaint

PestsApt 7H complaint

Mold, pestsApt 3H complaint

PestsApt 7H complaint

PestsApt 4B complaint

Mold, pestsApt 3H complaint

PestsApt 9H complaint

PestsApt 9H complaint

PestsApt 3F complaint

PestsApt 3H complaint

Mold, pestsApt 3H complaint

PestsApt 6C complaint

PestsApt 8C complaint

Mold, pestsApt 1E complaint

PestsApt BASEME complaint

Pests complaint

PestsApt 1C complaint

Mold, pestsApt 4B complaint

PestsApt 5E complaint

MoldApt 4B complaint

PestsApt 6C complaint

PestsApt MG complaint

PestsApt 9C complaint

PestsApt 9C complaint

Fire and safety

19 resolved since 2026

What has happened here

Show 14 more

Fire safety class A · closed · HPD violation

2012 May

Sprinklers permit

Electrical

6 complaints, 2025–2026 · 2 in the past year

What has happened here

ElectricalApt 9H complaint

Electrical class B · closed · HPD violation

ElectricalApt 9D complaint

ElectricalApt 9H complaint

ElectricalApt 1B complaint

ElectricalApt 3H complaint

Show 3 more

ElectricalApt 1A complaint

ElectricalApt 11E complaint

ElectricalApt 9D complaint

Elevators

Issues on record · 2 complaints, 2025

What has happened here

Elevators class - 2 · DOB violation

Elevators class - 1 · DOB violation

Show 2 more

Elevators

4 active elevators; latest periodic inspection Jul 2026

DOB NOW Elevator Safety Compliance, as of 2026-10-19 · 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 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

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

Gas

What has happened here

GasApt 9H class B · HPD violation

GasApt 9H class B · HPD violation

PL-PER Gas Piping - LL152 DOB violation

Gas piping

Open violation for not filing the periodic gas piping inspection (2025)

DOB Safety Violations, as of 2026-10-19

What this counts

Paperwork violation: the filing is missing, which is not a finding about the pipes

Energy

ENERGY STAR score 100 (2023 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

101 open: 101 about building conditions — walls, floors and stairs (35), fire safety (11), pests (10), smoke or CO detectors (10); 23 immediately hazardous (class C). 25 further violations from 2026 were closed. 366 violations on record in all, 1997–2026 — the 225 most recent are listed here

Walls, floors and stairsApt 9H class C

PlumbingApt 9H class B

Show 42 more

Doors and windowsApt 9H class B

Doors and windowsApt 9H class B

Smoke or CO detectorsApt 9H class B

Smoke or CO detectorsApt 9H class B

PlumbingApt 9H class B

Other conditionsApt 9H class A

Walls, floors and stairsApt 4G class B

Smoke or CO detectorsApt 1H class B

Smoke or CO detectorsApt 1H class B

Doors and windows class B

Walls, floors and stairsApt 2C class B

LeaksApt 2C class B

Doors and windowsApt 1H class B

Walls, floors and stairsApt 1H class B · closed

Walls, floors and stairsApt 1H class B · closed

Fire safety class A · closed

Electrical class B · closed

Smoke or CO detectorsApt 4C class B · closed

Pests class A · paperwork · closed

Smoke or CO detectorsApt 6D class B · closed

and 51 more at the source

Housing Maintenance Code Violations, as of 2026-10-19 · 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

DOB violations

17 open: 5 about building conditions, 12 about filings or paperwork

EN-LL97321 GHG Emissions - LL97

Elevators class - 2

EN-LL97321 GHG Emissions - LL97

Show 9 more

PL-PER Gas Piping - LL152

Construction class - 3

Failure To Submit Eer

No Report And / Or Late Filing (Facade)

Local Law class - 2

2023 Apr

Failure To Submit Eer

2023 Feb

2021 Dec

Failure To Post Energy Grade/Score

DOB Violations, as of 2026-10-19 · 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

Resident complaints to the city

78 heat or hot water, 29 plumbing, 28 pests, 21 general repairs, 20 doors or windows, 20 leaks, 20 paint or plaster, 14 floors or stairs, 12 mold, 9 appliances, 8 unsanitary conditions, 7 electrical, 3 outside the building, 3 safety, 2 elevators

Appliances, doors or windows, electrical, floors or stairs, general repairs, paint or plaster, plumbing, mold, pests, leaksApt 9H

PestsApt 1B

Appliances, doors or windowsApt 6C

Floors or stairs, moldApt 9H

PestsApt 2G

Outside the building, unsanitary conditions, pestsApt 1B

Appliances, doors or windows, plumbingApt 12H

Pests

Show 213 more

Paint or plaster, pests, leaksApt 5H

Unsanitary conditions

Doors or windows, floors or stairs, general repairs, plumbing, unsanitary conditionsApt 1G

Heat or hot waterApt 1G

Doors or windows, unsanitary conditions, pestsApt 1G

Floors or stairs, general repairs, heat or hot water, plumbing, unsanitary conditionsApt 1G

PestsApt 12F

Doors or windowsApt 6C

Paint or plaster, leaksApt 2C

Plumbing, leaksApt 1B

Heat or hot waterApt 9H

Heat or hot waterApt 8H

Heat or hot waterApt 8H

Heat or hot waterApt 10A

Heat or hot waterApt 3E

PlumbingApt 4D

Floors or stairsApt 6D

Heat or hot waterApt 5D

Heat or hot waterApt BASEME

Heat or hot waterApt 6D

PlumbingApt 10A

General repairsApt 10E

Doors or windowsApt 4B

Appliances, heat or hot water, paint or plaster, plumbingApt 2C

Floors or stairs, pestsApt 7H

Floors or stairs, general repairs, paint or plaster, plumbing, mold, pests, leaksApt 3H

LeaksApt 2C

PestsApt 7H

Floors or stairs, general repairs, paint or plaster, plumbing, pestsApt 4B

Doors or windows, floors or stairs, outside the building, paint or plaster, mold, pestsApt 3H

Appliances, floors or stairs, paint or plaster, plumbing, pests, leaksApt 9H

Doors or windows, unsanitary conditions

Doors or windows, general repairs, paint or plasterApt 6C

Doors or windows, electrical, floors or stairs, paint or plaster, plumbing, pestsApt 9H

LeaksApt 2C

Electrical, paint or plaster, leaksApt 1B

PestsApt 3F

Floors or stairs, paint or plaster, pestsApt 3H

Doors or windows, general repairsApt 2H

Paint or plasterApt 2H

Doors or windows, general repairsApt 3H

Doors or windows, floors or stairs, general repairs, paint or plaster, mold, pests, leaksApt 3H

Doors or windowsApt 6C

Doors or windows, pestsApt 6C

Paint or plaster, moldApt 3B

LeaksApt 4B

Electrical, paint or plaster, leaksApt 3H

General repairs, outside the buildingApt 3H

Paint or plaster, mold, leaksApt 4D

PestsApt 8C

Doors or windows, paint or plaster, plumbing, mold, pestsApt 1E

General repairs, paint or plasterApt 4B

Electrical, leaksApt 1A

Appliances, doors or windowsApt 6C

Doors or windowsApt 6C

General repairsApt 4B

MoldApt 1H

Heat or hot waterApt 4D

General repairsApt 3H

Floors or stairsApt 3H

PlumbingApt 11E

Elevators, unsanitary conditions

Elevators, unsanitary conditions

General repairs, leaksApt 4B

Paint or plaster, pestsApt 1C

General repairs, leaksApt 4B

PestsApt 5E

General repairs, plumbing, safetyApt 6B

General repairsApt 12H

Plumbing, moldApt 4B

Heat or hot waterApt 12H

Appliances, safetyApt 6B

General repairs, heat or hot waterApt 12H

Heat or hot waterApt 12H

General repairsApt 12H

Heat or hot waterApt 12H

Heat or hot waterApt 1E

Heat or hot waterApt 9A

PlumbingApt 2F

PestsApt 6C

Floors or stairs, paint or plaster, moldApt 3H

Paint or plasterApt 1C

2024 Jul

MoldApt 4B

Floors or stairs, paint or plaster, moldApt 3H

Doors or windows, floors or stairsApt 3H

Floors or stairsApt 9D

PlumbingApt 9D

General repairs, heat or hot water, paint or plasterApt 2C

Heat or hot waterApt 6D

Unsanitary conditions

Doors or windows, floors or stairs, moldApt 3H

Heat or hot waterApt 6D

Doors or windowsApt MG

2023 Oct

MoldApt 4B

Housing Maintenance Code Complaints and Problems, as of 2026-10-20 · 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

17 permits since 1990

2020 Dec

2013 Oct

Plumbing permit, Heating/ventilation permit, General construction permit

2012 Dec

2012 May

Sprinklers permit

2011 Aug

2010 Sep

Plumbing permit, General construction permit

2008 Mar

and 10 more at the source

DOB NOW: Build – Approved Permits, as of 2026-10-19 · 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

EN-LL97321 GHG Emissions - LL97 DOB violation

Appliances, doors or windows, floors or stairs, general repairs, paint or plasterApt 9H complaint

Appliances, doors or windowsApt 6C complaint

Smoke or CO detectorsApt 9H class B · HPD violation

Smoke or CO detectorsApt 9H class B · HPD violation

Other conditionsApt 9H class A · HPD violation

Show 70 more

Smoke or CO detectorsApt 1H class B · HPD violation

Smoke or CO detectorsApt 1H class B · HPD violation

Floors or stairsApt 9H complaint

Outside the buildingApt 1B complaint

Appliances, doors or windowsApt 12H complaint

EN-LL97321 GHG Emissions - LL97 DOB violation

Paint or plasterApt 5H complaint

Smoke or CO detectorsApt 4C class B · closed · HPD violation

Doors or windows, floors or stairs, general repairsApt 1G complaint

Doors or windowsApt 1G complaint

Floors or stairs, general repairsApt 1G complaint

Aeu-Haz Aeuhaz DOB violation

Paint or plasterApt 2C complaint

Smoke or CO detectorsApt 6D class B · closed · HPD violation

Floors or stairsApt 6D complaint

General repairsApt 10E complaint

Doors or windowsApt 4B complaint

Appliances, paint or plasterApt 2C complaint

Floors or stairsApt 7H complaint

Floors or stairs, general repairs, paint or plasterApt 3H complaint

Floors or stairs, general repairs, paint or plasterApt 4B complaint

Doors or windows, floors or stairs, outside the building, paint or plasterApt 3H complaint

Appliances, floors or stairs, paint or plasterApt 9H complaint

Doors or windows complaint

Doors or windows, general repairs, paint or plasterApt 6C complaint

Doors or windows, floors or stairs, paint or plasterApt 9H complaint

Paint or plasterApt 1B complaint

Floors or stairs, paint or plasterApt 3H complaint

Doors or windows, general repairsApt 2H complaint

Paint or plasterApt 2H complaint

Doors or windows, general repairsApt 3H complaint

Doors or windows, floors or stairs, general repairs, paint or plasterApt 3H complaint

Paint or plasterApt 3B complaint

Paint or plasterApt 3H complaint

General repairs, outside the buildingApt 3H complaint

Doors or windows complaint

Safety complaint

Paint or plasterApt 4D complaint

Doors or windows, paint or plasterApt 1E complaint

General repairs, paint or plasterApt 4B complaint

AppliancesApt 6C complaint

Appliances, doors or windowsApt 6C complaint

General repairsApt 4B complaint

General repairsApt 3H complaint

Floors or stairsApt 3H complaint

General repairsApt 4B complaint

Paint or plasterApt 1C complaint

General repairsApt 4B complaint

AppliancesApt 6B complaint

General repairsApt 12H complaint

General repairs, safetyApt 6B complaint

Appliances, safetyApt 6B complaint

General repairsApt 12H complaint

General repairsApt 12H complaint

Paint or plasterApt 1C complaint

2024 Jul

Floors or stairs, paint or plasterApt 3H complaint

Failure To Submit Eer DOB violation

Floors or stairs, paint or plasterApt 3H complaint

Floors or stairsApt 9D complaint

Doors or windows, floors or stairsApt 3H complaint

Local Law class - 2 · DOB violation

General repairs, paint or plasterApt 2C complaint

Doors or windows, floors or stairsApt 3H complaint