Building record from city data · MANHATTAN, NY

403 W 21 St

Printed 2026-10-20 from blueflo.tech/b/403-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 1889 · 5 stories · 11 apartments · BIN 1012637 · BBL 1007190037

Worth knowing
City records list the water service line as lead
Source: Lead Service Line Location Coordinates · as of 2026-01-30
Worth knowing
Also on record
Clean in the records
Registered with the city

CHELSEA MORNING APT. CORP.

Worth knowing
City records list the water service line as lead
Source: Lead Service Line Location Coordinates · as of 2026-01-30

Water and pipes

Issues on record
Water service line

Lead (records)

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

Heat and hot water

No issues on record
Heat source

Boiler burning natural gas (Weil Mclain EGH125), registration current since Nov 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 Jul 2025, 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 2001

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 complaintsfound0 heat or hot water complaints

Electrical

Older records on file

Structure and facade

No issues on record
Landmark statusWhole tax lot

In the Chelsea Historic District

PLUTO (tax lot data), as of 2026-08-24
  • Facade ratingnot requiredNot required: facade inspections apply only to buildings taller than 6 stories
  • Sidewalk shed and scaffoldingfoundNo active shed permit; permits since Aug 2022, last expired Aug 2023

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

General condition and all records

  • HPD violationsfound0 open. Also 1 older record from 1999 never closed. 4 violations on record in all, 1999–2022 — the 1 most recent are listed here
  • DOB violationsfound0 open
  • Resident complaints to the cityfoundno complaints

Nothing on record

Rent and tenancyNot on the state list
  • Rent stabilizationno recordNot on the state's 2024 list. Owners who register late or not at all are missing, so ask HCR about a specific apartment
Gasno record
  • Gas pipingno recordNo open gas piping filing violations. Inspection results themselves are not published
Energyno record
  • Energynot requiredNot required: energy reporting applies to buildings over 25,000 sq ft
ElevatorsNot applicable
  • Elevatorsnot requiredNo elevators registered to this building

Sources

23 datasets

Each date is when we last checked that dataset, not when the record itself was created.