434 Troy Ave

Elevators class - 2 · DOB violation

Elevators class - 2 · DOB violation

Elevators class - 2 · DOB violation

ElevatorsApt 5K complaint

Elevators

2 active elevators; latest periodic inspection Feb 2026

DOB NOW Elevator Safety Compliance, as of 2026-10-20 · See this building's elevators on NYC Open Data →

What this counts

Active elevator devices registered to this building ID

Heat and hot water

Issues on record · 45 complaints, 2024–2026 · 14 in the past year

What has happened here

Heat or hot water class C · HPD violation

Heat or hot waterApt 6J class C · HPD violation

Show 66 more

2026 Feb

Heat or hot waterApt 3N class A · closed · HPD violation

Heat or hot waterApt 4G complaint

Heat or hot waterApt 6I complaint

Heat or hot waterApt 6A complaint

Heat or hot waterApt 6D complaint

Heat or hot waterApt 5B complaint

Heat or hot waterApt 4L complaint

2025 Apr

Heat or hot waterApt 4S complaint

Heat or hot waterApt 2K complaint

Heat or hot water class C · closed · HPD violation

Heat or hot waterApt 1A complaint

Heat or hot waterApt 4A complaint

Heat or hot waterApt 1A complaint

Heat or hot waterApt 1K complaint

Heat or hot waterApt 1K complaint

Heat or hot waterApt 5I complaint

Heat or hot waterApt 3B complaint

Heat or hot waterApt 5C complaint

Heat or hot waterApt 3C complaint

Heat or hot waterApt 5I complaint

Heat or hot waterApt 3C complaint

2024 Apr

Heat or hot waterApt 3R complaint

Heat or hot waterApt 1K complaint

Heat or hot waterApt 3C complaint

Heat or hot waterApt 3B complaint

2024 Jan

2024 Jan

2024 Jan

Heat or hot waterApt 6S complaint

2023 Nov

Heat or hot waterApt 1A complaint

2023 Apr

Low Pressure Boiler DOB violation

2009 Aug

Fuel burning permit, Boiler permit

1993 Aug

Local Law 62/91 - Boilers never closed · DOB violation

Heat source

Boiler burning natural gas (Federal FST-150), registration current since Aug 2025

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 2026-10-20 · See the boiler filings at DOB →

What this counts

Accepted annual boiler inspection filings, any date

Boiler work permits

Latest boiler work permit 2009

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

10 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 · 10 complaints, 2024–2026 · 8 in the past year

What has happened here

LeaksApt 2H class A · HPD violation

LeaksApt 2H class B · HPD violation

Plumbing, leaksApt 2H complaint

LeaksApt 1B class B · HPD violation

LeaksApt 1B class B · HPD violation

PlumbingApt 1B class B · HPD violation

Show 19 more

LeaksApt 3C complaint

Leaks class B · HPD violation

PlumbingApt 6 complaint

Plumbing complaint

LeaksApt 1R complaint

LeaksApt 5A class C · closed · HPD violation

LeaksApt 5A complaint

Plumbing, leaksApt 1B complaint

LeaksApt 3N class B · closed · HPD violation

LeaksApt 3N class B · closed · HPD violation

LeaksApt 3N complaint

2025 Jun

PlumbingApt 1A complaint

LeaksApt 1K complaint

PlumbingApt 3K complaint

Plumbing, leaksApt 3J complaint

LeaksApt 4J complaint

PlumbingApt 5K complaint

2024 May

LeaksApt 2F complaint

2011 Feb

Plumbing permit

Water service line

Non-Lead (field inspection)

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

Pests and cleanliness

3 complaints, 2024–2026 · 2 in the past year

What has happened here

MoldApt 5A complaint

PestsApt 1B class C · closed · HPD violation

PestsApt 1B class C · closed · HPD violation

MoldApt 1B class A · closed · HPD violation

PestsApt 1B complaint

Pests class C · closed · HPD violation

Show 6 more

MoldApt 1K complaint

2024 Sep

PestsApt 4F complaint

PestsApt 6H complaint

Unsanitary conditions complaint

PestsApt 5K complaint

2023 Nov

Unsanitary conditions complaint

Electrical

3 complaints, 2026

What has happened here

ElectricalApt 1R complaint

ElectricalApt 5D complaint

ElectricalApt 5H complaint

ElectricalApt 4L complaint

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

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

Energy

ENERGY STAR score 56 (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

37 open: 37 about building conditions — fire safety (7), heat or hot water (6), smoke or CO detectors (6), walls, floors and stairs (6); 10 immediately hazardous (class C). Also 1 older record from 2013 never closed. 25 further violations from 2025–2026 were closed. 336 violations on record in all, 1998–2026 — the 124 most recent are listed here

Smoke or CO detectorsApt 5K class B

Smoke or CO detectorsApt 5K class B

Fire safety class C

Smoke or CO detectorsApt 6N class B

Smoke or CO detectorsApt 6N class B

Heat or hot water class C

Heat or hot waterApt 6J class C

Other conditions class A

Show 42 more

Fire safetyApt 2H class C

Walls, floors and stairsApt 2H class B

LeaksApt 2H class A

Walls, floors and stairsApt 2H class B

PlumbingApt 1B class B

Leaks class B

Walls, floors and stairs class A

Other conditions class A

Other conditions class A

Smoke or CO detectorsApt 5A class B

Smoke or CO detectorsApt 5A class B

Walls, floors and stairsApt 5A class B · closed

LeaksApt 5A class C · closed

Lead-based paintApt 1B class C · closed

Lead-based paintApt 1B class C · closed

Walls, floors and stairsApt 1B class A · closed

PestsApt 1B class C · closed

PestsApt 1B class C · closed

Doors and windowsApt 1B class A · closed

MoldApt 1B class A · closed

Walls, floors and stairsApt 3N class A · closed

LeaksApt 3N class B · closed

Walls, floors and stairsApt 3N class B · closed

Heat or hot waterApt 3N class A · closed

Walls, floors and stairsApt 3N class A · closed

Walls, floors and stairsApt 3N class B · closed

LeaksApt 3N class B · closed

Fire safety class C · closed

Smoke or CO detectorsApt 6A class B · closed

Smoke or CO detectorsApt 6A class B · closed

2025 Jul

Fire safety class B · closed

2025 Jul

Fire safety class B · closed

Smoke or CO detectorsApt 2K class B · closed

Smoke or CO detectorsApt 2K class B · closed

Pests class C · closed

Heat or hot water class C · closed

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

DOB violations

7 open: 5 about building conditions, 2 about filings or paperwork

Hazardous Condition (Facade)

2021 Jun

Failure To Correct Swarmp Conditions (Facade)

1993 Aug

Local Law 62/91 - Boilers never closed

DOB Violations, as of 2026-10-21 · 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

45 heat or hot water, 7 leaks, 5 plumbing, 4 paint or plaster, 3 electrical, 2 general repairs, 2 mold, 1 appliances, 1 doors or windows, 1 pests

General repairsApt 5K

General repairsApt 3D

Doors or windowsApt 6S

Plumbing, leaksApt 2H

2026 Aug

Paint or plasterApt 4R

Show 84 more

Paint or plaster, leaksApt 3C

Electrical, leaksApt 1R

ElectricalApt 5D

Appliances, electricalApt 5H

Paint or plaster, mold, leaksApt 5A

2026 Feb

Plumbing, pests, leaksApt 1B

Paint or plaster, leaksApt 3N

Heat or hot waterApt 4G

Heat or hot waterApt 6I

Heat or hot waterApt 6A

Heat or hot waterApt 6D

Heat or hot waterApt 5B

Heat or hot waterApt 4L

2025 Jun

PlumbingApt 1A

2025 Apr

Heat or hot waterApt 4S

Heat or hot waterApt 2K

Heat or hot waterApt 1A

Heat or hot waterApt 4A

Heat or hot waterApt 1A

Heat or hot waterApt 1K

Heat or hot waterApt 1K

Heat or hot waterApt 5I

Heat or hot waterApt 3B

Heat or hot waterApt 5C

Heat or hot waterApt 3C

Heat or hot waterApt 5I

Paint or plaster, plumbing, leaksApt 3J

Heat or hot waterApt 3C

Paint or plaster, pestsApt 4F

LeaksApt 4J

2024 Sep

ElectricalApt 4L

Floors or stairs, general repairs, pestsApt 6H

ElevatorsApt 5K

Doors or windows, paint or plaster, plumbing, pestsApt 5K

Heat or hot waterApt 3R

Heat or hot waterApt 1K

Heat or hot waterApt 3C

Heat or hot waterApt 3B

Heat or hot waterApt 6S

2023 Nov

Unsanitary conditions

Heat or hot waterApt 1A

Unsanitary conditions

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

10 permits since 1990

Supported scaffold permit

2022 May

Antenna permit

2021 Jul

2018 Sep

2014 Mar

2014 Jan

Plumbing permit, Fuel burning permit, Boiler permit

2011 Feb

2005 May

and 2 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

Everything else on record

Smoke or CO detectorsApt 5K class B · HPD violation

Smoke or CO detectorsApt 5K class B · HPD violation

General repairsApt 5K complaint

General repairsApt 3D complaint

Smoke or CO detectorsApt 6N class B · HPD violation

Smoke or CO detectorsApt 6N class B · HPD violation

Show 21 more

Doors or windowsApt 6S complaint

Other conditions class A · HPD violation

2026 Aug

Paint or plasterApt 4R complaint

Paint or plasterApt 3C complaint

Other conditions class A · HPD violation

AppliancesApt 5H complaint

Other conditions class A · HPD violation

Smoke or CO detectorsApt 5A class B · HPD violation

Smoke or CO detectorsApt 5A class B · HPD violation

Paint or plasterApt 5A complaint

Paint or plasterApt 3N complaint

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

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

Smoke or CO detectorsApt 2K class B · closed · HPD violation

Smoke or CO detectorsApt 2K class B · closed · HPD violation

Paint or plasterApt 3J complaint

2024 Sep

Paint or plasterApt 4F complaint

Floors or stairs, general repairsApt 6H complaint