4451 Broadway

Heat or hot waterApt 3J complaint

Heat or hot waterApt 6N class C · closed · HPD violation

2026 Mar

2026 Mar

Show 65 more

Heat or hot waterApt 4C complaint

Heat or hot waterApt 2G class C · closed · HPD violation

Heat or hot waterApt 5B complaint

Heat or hot waterApt 5B complaint

Heat or hot waterApt 5G class C · closed · HPD violation

Heat or hot waterApt 6N class C · closed · HPD violation

Heat or hot waterApt 2G complaint

Heat or hot waterApt 6L complaint

Heat or hot waterApt 1B complaint

Heat or hot waterApt 2L complaint

2025 Mar

Heat or hot waterApt 4M complaint

Heat or hot waterApt 6F complaint

Heat or hot waterApt 3H complaint

Heat or hot waterApt 2M complaint

Heat or hot waterApt 6F complaint

2024 Dec

2024 Jan

2023 Nov

2023 Oct

Heating/ventilation permit

2017 Sep

2016 Aug

Heating/ventilation permit, Fuel storage permit

Heat source

Boiler burning natural gas (Federal FST-125), registration current since Mar 2025

Clean Air Tracking System (boiler registrations), as of 2026-10-16 · See this building's boiler registrations on NYC Open Data →

Boiler inspection filings

Latest accepted inspection May 2026, defects reported: no

DOB NOW: Safety Boiler, as of 2026-10-16 · 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 2026-10-16

What this counts

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

Heat and hot water complaints

56 heat or hot water complaints

Housing Maintenance Code Complaints and Problems, as of 2026-10-17 · 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 · 11 complaints, 2025–2026 · 8 in the past year

What has happened here

2026 Sep

PlumbingApt 6F complaint

2026 Sep

PlumbingApt 6F complaint

LeaksApt 1F complaint

LeaksApt 6O class B · HPD violation

PlumbingApt 3J complaint

LeaksApt 6N class B · closed · HPD violation

Show 11 more

LeaksApt 6O class B · closed · HPD violation

LeaksApt 1H complaint

LeaksApt 1F complaint

PlumbingApt 5G complaint

PlumbingApt 5G complaint

PlumbingApt 6F complaint

Leaks, plumbingApt 6C complaint

PlumbingApt 1F complaint

Water service line

Non-Lead (records)

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

Pests and cleanliness

8 complaints, 2025–2026 · 7 in the past year

What has happened here

MoldApt 1F complaint

MoldApt 3J class A · closed · HPD violation

PestsApt 1F class C · closed · HPD violation

PestsApt 1F class C · closed · HPD violation

PestsApt 1F class C · closed · HPD violation

PestsApt 1F complaint

Show 12 more

Unsanitary conditions complaint

2024 Aug

Mold, pestsApt 6C complaint

2023 Nov

PestsApt 3E complaint

Electrical

1 complaint, 2025

What has happened here

ElectricalApt 6C 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 2026-10-17

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

No issues on record

Elevators

1 active elevator; latest periodic inspection Jun 2026

DOB NOW Elevator Safety Compliance, as of 2026-10-16 · 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

Energy

ENERGY STAR score 93 (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

12 open: 12 about building conditions — doors and windows (5), smoke or CO detectors (2), other conditions (2), walls, floors and stairs (1); 1 immediately hazardous (class C). 25 further violations from 2025–2026 were closed. 451 violations on record in all, 1993–2026 — the 97 most recent are listed here

Other conditionsApt 3J class B

Other conditionsApt 3J class A

Doors and windows class B

Smoke or CO detectorsApt 6O class B

Smoke or CO detectorsApt 6O class B

MoldApt 3J class A · closed

Show 29 more

Other conditionsApt 3J class B · closed

Walls, floors and stairsApt 3J class B · closed

Walls, floors and stairsApt 3J class B · closed

Other conditionsApt 3J class A · closed

Doors and windowsApt 1F class B

PestsApt 1F class C · closed

PestsApt 1F class C · closed

Fire safetyApt 1F class C · closed

LeaksApt 6N class B · closed

Heat or hot waterApt 6N class C · closed

LeaksApt 6O class B · closed

Walls, floors and stairsApt 6O class B · closed

Doors and windowsApt 1F class B

Doors and windowsApt 1F class A

PestsApt 1F class C · closed

Heat or hot waterApt 2G class C · closed

Fire safety class C · closed

Heat or hot waterApt 5G class C · closed

Heat or hot waterApt 6N class C · closed

Fire safety class C · closed

Fire safety class C · closed

Doors and windowsApt 6N class B · closed

Fire safetyApt 6N class C · closed

Doors and windowsApt 6O class B

Walls, floors and stairsApt 6O class B

Housing Maintenance Code Violations, as of 2026-10-17 · 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

63 heat or hot water, 11 paint or plaster, 10 doors or windows, 8 plumbing, 6 mold, 4 leaks, 2 appliances, 2 floors or stairs, 2 general repairs, 1 electrical, 1 pests, 1 unsanitary conditions

Paint or plaster, leaksApt 1F

Floors or stairsApt 1F

Paint or plaster, moldApt 1F

PlumbingApt 3J

Heat or hot waterApt 3J

Show 86 more

Paint or plasterApt 3J

Paint or plaster, pestsApt 1F

Paint or plaster, general repairsApt 6K

LeaksApt 1H

Heat or hot waterApt 4C

Heat or hot waterApt 5G

Heat or hot waterApt 5B

Paint or plaster, moldApt 3O

Heat or hot waterApt 5G

Paint or plaster, moldApt 3O

Heat or hot waterApt 5B

Heat or hot waterApt 6O

Heat or hot waterApt 5G

Doors or windows, general repairsApt 2K

MoldApt 6N

Doors or windowsApt 6F

Heat or hot waterApt 2G

Doors or windows, heat or hot water, appliancesApt 6O

Doors or windowsApt 6F

Heat or hot water, moldApt 6L

Heat or hot waterApt 6O

Heat or hot water, doors or windows, appliancesApt 6O

Heat or hot waterApt 1B

Heat or hot waterApt 2L

Doors or windows, paint or plaster, mold, leaksApt 1F

Heat or hot water, doors or windows, plumbingApt 5G

Floors or stairs, doors or windowsApt 5G

Electrical, leaks, doors or windows, plumbingApt 6C

Doors or windows, paint or plaster, plumbingApt 1F

2025 Jul

Unsanitary conditions

2025 Mar

Heat or hot waterApt 4M

Heat or hot waterApt 6F

Heat or hot waterApt 3H

Heat or hot waterApt 2M

2024 Dec

Heat or hot waterApt 6F

Doors or windows, safetyApt 1F

Paint or plasterApt 5M

Paint or plasterApt 3H

2024 Sep

Doors or windowsApt 6F

Housing Maintenance Code Complaints and Problems, as of 2026-10-17 · 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

32 permits since 1990

2022 Apr

General construction permit

2019 Aug

Plumbing permit

2018 Feb

General construction permit, Plumbing permit, Heating/ventilation permit

2017 Oct

Fire protection permit

2016 Aug

General construction permit, Heating/ventilation permit, Fuel storage permit, Plumbing permit

and 27 more at the source

DOB NOW: Build – Approved Permits, as of 2026-10-16 · 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

Paint or plasterApt 1F complaint

Floors or stairsApt 1F complaint

Other conditionsApt 3J class B · HPD violation

Other conditionsApt 3J class A · HPD violation

Paint or plasterApt 1F complaint

Smoke or CO detectorsApt 6O class B · HPD violation

Show 22 more

Smoke or CO detectorsApt 6O class B · HPD violation

Other conditionsApt 3J class B · closed · HPD violation

Other conditionsApt 3J class A · closed · HPD violation

Paint or plasterApt 3J complaint

Paint or plasterApt 1F complaint

Paint or plaster, general repairsApt 6K complaint

Paint or plasterApt 3O complaint

Paint or plasterApt 3O complaint

Doors or windows, general repairsApt 2K complaint

Doors or windowsApt 6F complaint

Doors or windows, appliancesApt 6O complaint

Doors or windowsApt 6F complaint

Doors or windows, appliancesApt 6O complaint

Doors or windows, paint or plasterApt 1F complaint

Floors or stairs, doors or windowsApt 5G complaint

Doors or windowsApt 5G complaint

Doors or windowsApt 6C complaint

Doors or windows, paint or plasterApt 1F complaint