Building record from city data · MANHATTAN, NY

433 W 21 St

Printed 2026-10-20 from blueflo.tech/b/433-west-21-street-manhattan, where it is kept current. These are city records, not an inspection by Blueflo. Every item shows its source and the date it was last checked. Not a warranty. May not be used for tenant screening (terms of use).

built 1930 · 11 stories · 67 apartments · BIN 1012626 · BBL 1007190020

Worth knowing
5 open immediately hazardous (class C) HPD violations about pests and walls, floors and stairs
Source: Housing Maintenance Code Violations · as of 2026-10-19
Worth knowing
Also on record
Clean in the records
Registered with the city

URBAN ASSOCIATES LLC, 433 WEST ASSOCIATES, LCC, 433 WEST ASSOCIATES,

Pests: 7 reports to the city since 2024
More reports than 9 in 10 similar-size buildings in Chelsea & Clinton
2024Pests · Aug 2024 · 1 report (1 complaint)Aug 21, 2024Pests · Sep 2024 · 1 report (1 complaint)Sep 21, 2024Pests · Oct 2024 · 2 reports (2 complaints)Oct 11, 2024Oct 28, 2024
2025
2026Pests · Mar 2026 · 1 report (1 complaint)Mar 19, 2026Pests · Apr 2026 · 1 report (1 complaint)Apr 24, 2026Pests · May 2026 · 1 report (1 complaint)May 21, 2026
Source: HPD Complaints and Problems · as of 2026-10-20

Also reported

2024 – 2026

A filled month had a report to HPD; darker means more than one, and the past year is brightest. Tap one to read it. Complaints within a week count as one report. Records list complaints filed, not conditions found.

Apartments named in these records

Apt 2 1Apt 2B 17Apt 4B 5Apt 4C 1Apt 5A 10Apt 6A 6Apt 6D 1Apt 6E 8Apt 7A 3Apt 7F 1Apt 9A 40Apt 10A 12

12 of this building’s 67 apartments are named in a city record. The rest have no record naming them, which is the usual case.

These are city records about an apartment, not about anyone who lives or lived there. They may not be used to screen a tenant.

Structure and facade

Issues on record
What has happened here
2026 Jun
General construction permit
2026 May
Walls, floors and stairs class B · HPD violation
2026 May
Walls, floors and stairsApt 9A class B · HPD violation
2026 May
Walls, floors and stairsApt 9A class B · HPD violation
2026 May
Walls, floors and stairsApt 9A class B · HPD violation
2026 May
Walls, floors and stairsApt 9A class B · HPD violation
Show 21 more
2026 Apr
Walls, floors and stairs class A · closed · HPD violation
2026 Apr
Walls, floors and stairsApt 2B class B · closed · HPD violation
2026 Apr
Doors and windowsApt 2B class B · closed · HPD violation
2026 Mar
Walls, floors and stairs class A · closed · HPD violation
2026 Mar
Walls, floors and stairsApt 9A class B · HPD violation
2026 Mar
Walls, floors and stairsApt 9A class B · HPD violation
2026 Mar
Walls, floors and stairsApt 9A class C · HPD violation
2026 Mar
Walls, floors and stairsApt 9A class A · HPD violation
2026 Mar
Walls, floors and stairsApt 9A class B · HPD violation
2026 Mar
Walls, floors and stairsApt 9A class B · HPD violation
2026 Mar
Walls, floors and stairsApt 6A class B · HPD violation
2026 Mar
Walls, floors and stairsApt 6A class B · HPD violation
2026 Mar
Walls, floors and stairsApt 6A class C · HPD violation
2026 Mar
Walls, floors and stairsApt 7F class A · closed · HPD violation
2024 Mar
Walls, floors and stairsApt 10A class B · closed · HPD violation
2024 Mar
Walls, floors and stairsApt 10A class B · closed · HPD violation
2023 Oct
General construction permit
2022 Feb
No Report And / Or Late Filing (Facade) DOB violation
2019 May
General construction permit
2018 May
General construction permit
2017 Jul
General construction permit
Facade rating

Safe with a repair and maintenance program (cycle 9, filed Feb 2023)

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

Sidewalk shed and scaffolding

Shed permit active now

DOB NOW: Build – Approved Permits, as of 2026-10-17 · See the shed permits at DOB →
What this counts

Sidewalk shed permits (DOB NOW and BIS). Permitted since a date means permitted, not necessarily up continuously

Landmark statusWhole tax lot

In the Chelsea Historic District

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

Heat and hot water

2 complaints, 2024–2026 · 1 in the past year
What has happened here
2026 Apr
Heat or hot waterApt 2B class C · closed · HPD violation
2026 Mar
Heat or hot waterApt 6A class C · closed · HPD violation
2026 Mar
Heat or hot waterApt 2B complaint
2024 Dec
Heat or hot water complaint
2024 Apr
Heat or hot waterApt 5A class C · closed · HPD violation
2023 Dec
Heat or hot waterApt 5A class C · closed · HPD violation
Heat source

Boiler burning No. 4 oil (Federal FST-100), registration current since Aug 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 Sep 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 permits

Latest boiler work permit 2004

DOB Permit Issuance (BIS), as of 2026-10-19
What this counts

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

Heat and hot water complaints

1 heat or hot water complaint

Housing Maintenance Code Complaints and Problems, as of 2026-10-19 · 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 · 6 complaints, 2026
What has happened here
2026 Aug
Leaks class A · HPD violation
2026 May
PlumbingApt 2B complaint
2026 Apr
LeaksApt 2B class B · closed · HPD violation
2026 Apr
PlumbingApt 2B complaint
2026 Mar
LeaksApt 9A class B · HPD violation
2026 Mar
LeaksApt 9A class B · HPD violation
Show 11 more
2026 Mar
LeaksApt 6A class B · HPD violation
2026 Mar
PlumbingApt 2B complaint
2026 Feb
LeaksApt 9A complaint
2026 Feb
LeaksApt 7A complaint
2026 Feb
LeaksApt 6A complaint
2025 Jul
Plumbing DOB violation
2024 Jul
LeaksApt 9A complaint
2024 Apr
PlumbingApt 5A complaint
2024 Mar
PlumbingApt 10A complaint
2023 Dec
PlumbingApt 5A complaint
2018 Jan
Plumbing permit
Water service line

Non-Lead (records)

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

Pests and cleanliness

Issues on record · 7 complaints, 2024–2026 · 5 in the past year
What has happened here
2026 May
MoldApt 9A class B · HPD violation
2026 May
PestsApt 9A complaint
2026 Apr
PestsApt 2B complaint
2026 Mar
Pests class C · HPD violation
2026 Mar
MoldApt 9A class B · HPD violation
2026 Mar
PestsApt 2B complaint
Show 12 more
2026 Feb
MoldApt 9A complaint
2026 Jan
Unsanitary conditionsApt 4B complaint
2025 Jun
MoldApt 4C complaint
2024 Nov
PestsApt 6E class C · closed · HPD violation
2024 Nov
PestsApt 6E class C · closed · HPD violation
2024 Oct
PestsApt 6E complaint
2024 Oct
PestsApt 4B complaint
2024 Sep
PestsApt 6E complaint
2024 Aug
PestsApt 6E complaint
2024 Mar
MoldApt 9A complaint
2024 Mar
MoldApt 10A complaint
2023 Dec
MoldApt 9A complaint

Fire and safety

6 resolved since 2024
What has happened here
2026 Apr
Fire safety class B · closed · HPD violation
2026 Mar
Fire safety class C · closed · HPD violation
2026 Mar
Fire safety class C · closed · HPD violation
2026 Mar
Fire safety class C · closed · HPD violation
2026 Mar
Fire safety class B · closed · HPD violation
2024 Mar
Fire safetyApt 10A class C · closed · HPD violation

Electrical

Issues on record · 1 complaint, 2026
What has happened here
2026 May
ElectricalApt 9A class B · HPD violation
2026 May
ElectricalApt 9A class B · HPD violation
2026 May
ElectricalApt 9A complaint
2026 Apr
ElectricalApt 2B class B · closed · HPD violation
2024 Apr
ElectricalApt 9A 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 2026-10-19
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

2 active elevators; latest periodic inspection Jul 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

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

Gas

What has happened here
2025 Oct
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 2026-10-18
What this counts

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

Energy

Energy

ENERGY STAR score 49 (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

40 open: 40 about building conditions — walls, floors and stairs (20), leaks (6), mold (3), pests (3); 5 immediately hazardous (class C). 25 further violations from 2023–2026 were closed. 100 violations on record in all, 2019–2026 — the 65 most recent are listed here

2026 Aug
Leaks class A
2026 Aug
Other conditions class A
2026 Aug
Smoke or CO detectors class A
2026 May
Walls, floors and stairs class B
2026 May
Walls, floors and stairsApt 9A class B
2026 May
Walls, floors and stairsApt 9A class B
2026 May
ElectricalApt 9A class B
2026 May
Walls, floors and stairsApt 9A class B
Show 42 more
2026 May
MoldApt 9A class B
2026 May
Walls, floors and stairsApt 9A class B
2026 May
ElectricalApt 9A class B
2026 Apr
Walls, floors and stairs class A · closed
2026 Apr
Fire safety class B · closed
2026 Apr
Walls, floors and stairsApt 2B class B · closed
2026 Apr
ElectricalApt 2B class B · closed
2026 Apr
Heat or hot waterApt 2B class C · closed
2026 Apr
Smoke or CO detectorsApt 2B class B · closed
2026 Apr
Smoke or CO detectorsApt 2B class B · closed
2026 Apr
Doors and windowsApt 2B class B · closed
2026 Apr
LeaksApt 2B class B · closed
2026 Mar
Pests class C
2026 Mar
Fire safety class C · closed
2026 Mar
Fire safety class C · closed
2026 Mar
Fire safety class C · closed
2026 Mar
Walls, floors and stairs class A · closed
2026 Mar
Fire safety class B · closed
2026 Mar
LeaksApt 9A class B
2026 Mar
Walls, floors and stairsApt 9A class B
2026 Mar
MoldApt 9A class B
2026 Mar
Walls, floors and stairsApt 9A class B
2026 Mar
Walls, floors and stairsApt 9A class C
2026 Mar
Walls, floors and stairsApt 9A class A
2026 Mar
Walls, floors and stairsApt 9A class B
2026 Mar
Walls, floors and stairsApt 9A class B
2026 Mar
LeaksApt 9A class B
2026 Mar
Walls, floors and stairsApt 6A class B
2026 Mar
LeaksApt 6A class B
2026 Mar
Walls, floors and stairsApt 6A class B
2026 Mar
Walls, floors and stairsApt 6A class C
2026 Mar
Heat or hot waterApt 6A class C · closed
2026 Mar
Walls, floors and stairsApt 7F class A · closed
2026 Mar
Smoke or CO detectorsApt 6E class B · closed
2026 Mar
Smoke or CO detectorsApt 6E class B · closed
2024 Nov
PestsApt 6E class C · closed
2024 Nov
PestsApt 6E class C · closed
2024 Apr
Heat or hot waterApt 5A class C · closed
2024 Mar
Fire safetyApt 10A class C · closed
2024 Mar
Walls, floors and stairsApt 10A class B · closed
2024 Mar
Walls, floors and stairsApt 10A class B · closed
2023 Dec
Heat or hot waterApt 5A class C · closed
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

Resident complaints to the city

8 general repairs, 6 plumbing, 4 pests, 3 leaks, 3 paint or plaster, 2 appliances, 2 doors or windows, 2 heat or hot water, 2 mold, 1 electrical, 1 floors or stairs, 1 unsanitary conditions

2026 May
PlumbingApt 2B
2026 May
Electrical, paint or plaster, pestsApt 9A
2026 Apr
Doors or windows, plumbing, pestsApt 2B
2026 Mar
PlumbingApt 2B
2026 Mar
PestsApt 2B
2026 Mar
Heat or hot waterApt 2B
2026 Feb
Paint or plaster, mold, leaksApt 9A
2026 Feb
Floors or stairs, general repairs, leaksApt 7A
Show 28 more
2026 Feb
LeaksApt 6A
2026 Feb
AppliancesApt 4B
2026 Jan
Appliances, doors or windows, unsanitary conditionsApt 4B
2025 Jun
MoldApt 4C
2025 Jun
General repairsApt 6D
2025 Jun
General repairsApt 5A
2025 Jun
General repairsApt 10A
2025 Jun
General repairsApt 2
2025 Jun
General repairs
2025 May
General repairsApt 5A
2025 May
General repairsApt 6E
2024 Dec
Heat or hot water
2024 Oct
PestsApt 6E
2024 Oct
PestsApt 4B
2024 Sep
PestsApt 6E
2024 Aug
PestsApt 6E
2024 Jul
Doors or windows, floors or stairs, general repairs, paint or plaster, leaksApt 9A
2024 May
General repairsApt 9A
2024 May
Floors or stairsApt 9A
2024 May
Paint or plasterApt 9A
2024 Apr
Doors or windows, electricalApt 9A
2024 Apr
Floors or stairsApt 9A
2024 Apr
Paint or plasterApt 9A
2024 Apr
PlumbingApt 5A
2024 Mar
MoldApt 9A
2024 Mar
Appliances, doors or windows, general repairs, paint or plaster, plumbing, moldApt 10A
2023 Dec
Paint or plaster, moldApt 9A
2023 Dec
Floors or stairs, paint or plaster, plumbingApt 5A
Housing Maintenance Code Complaints and Problems, as of 2026-10-19 · 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

Everything else on record
2026 Sep
EN-BENCH Benchmarking - LL84 DOB violation
2026 Aug
Other conditions class A · HPD violation
2026 Aug
Smoke or CO detectors class A · HPD violation
2026 Jul
Supported scaffold permit
2026 May
Paint or plasterApt 9A complaint
2026 May
Suspended scaffold permit
Show 35 more
2026 Apr
Smoke or CO detectorsApt 2B class B · closed · HPD violation
2026 Apr
Smoke or CO detectorsApt 2B class B · closed · HPD violation
2026 Apr
Doors or windowsApt 2B complaint
2026 Mar
Smoke or CO detectorsApt 6E class B · closed · HPD violation
2026 Mar
Smoke or CO detectorsApt 6E class B · closed · HPD violation
2026 Feb
Paint or plasterApt 9A complaint
2026 Feb
Floors or stairs, general repairsApt 7A complaint
2026 Feb
AppliancesApt 4B complaint
2026 Jan
Appliances, doors or windowsApt 4B complaint
2025 Jun
General repairsApt 6D complaint
2025 Jun
General repairsApt 5A complaint
2025 Jun
General repairsApt 10A complaint
2025 Jun
General repairsApt 2 complaint
2025 Jun
General repairs complaint
2025 May
General repairsApt 5A complaint
2025 May
General repairsApt 6E complaint
2024 Jul
Doors or windows, floors or stairs, general repairs, paint or plasterApt 9A complaint
2024 Jun
Failure To Submit Eer DOB violation
2024 May
General repairsApt 9A complaint
2024 May
Floors or stairsApt 9A complaint
2024 May
Paint or plasterApt 9A complaint
2024 Apr
Doors or windowsApt 9A complaint
2024 Apr
Floors or stairsApt 9A complaint
2024 Apr
Paint or plasterApt 9A complaint
2024 Mar
Appliances, doors or windows, general repairs, paint or plasterApt 10A complaint
2023 Dec
Paint or plasterApt 9A complaint
2023 Dec
Floors or stairs, paint or plasterApt 5A complaint
2023 Sep
Supported scaffold permit
2023 Apr
Failure To Submit Eer DOB violation
2022 Dec
Local Law class - 2 · DOB violation
2022 Aug
Failure To Submit Eer DOB violation
2021 Dec
Failure To Post Energy Grade/Score DOB violation
2021 Jun
Failure To Submit Eer DOB violation
2020 Jun
Failure To Submit Eer DOB violation
2019 Apr
Supported scaffold permit

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.