Printed 2026-10-21 from blueflo.tech/b/243-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 1920 · 5 stories · 20 apartments · BIN 1078597 · BBL 1007710014
- Basement on record, and the city's stormwater map shows flooding here in at least one storm scenario
- City stormwater map shows nuisance flooding at this building in the Extreme storm, 2080 sea levels scenario
- Water service line on record as non-lead (field inspection)
- Outside FEMA's 1% annual-chance flood zone
- No open HPD violations about building conditions from the last 10 years
- No heat or hot water complaints filed last winter
239-243-247 W. 21 REALTY LLC
Flooding
Issues on recordOutside FEMA's 1% annual-chance flood zone: X
What this counts
Effective FIRM zones touching the building footprint
Extreme storm, 2080 sea levels: Nuisance flooding (4 in. to 1 ft); 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)
What this counts
Mapped ponding touching the building footprint
- BasementfoundNo basement
Heat and hot water
No issues on recordBoiler burning natural gas (Federal FST-60), registration current since Feb 2024
Latest boiler work permit 2005
What this counts
DOB boiler permits (BIS and DOB NOW); a permit dates work, not the boiler's age
- Boiler inspection filingsno recordNo boiler filings under this building's ID
- Heat and hot water complaintsfound0 heat or hot water complaints
Water and pipes
No issues on recordNon-Lead (field inspection)
Structure and facade
No issues on record- Facade ratingnot requiredNot required: facade inspections apply only to buildings taller than 6 stories
- Sidewalk shed and scaffoldingfoundNo active shed permit
- Landmark statusno recordNot in a historic district on record
Rent and tenancy
On the state listOn the state's list of buildings with at least one rent-stabilized apartment (2024 registrations); listed for this tax lot (3 addresses), not under this building's address
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
General condition and all records
3 permits since 1990
What this counts
DOB permits issued (DOB NOW and legacy BIS), one per job and work type; excludes sheds
- HPD violationsfound0 open. 12 violations on record in all, 1990 — the 0 most recent are listed here
- DOB violationsfound0 open
- Resident complaints to the cityfoundno complaints
Nothing on record
- Gas pipingno recordNo open gas piping filing violations. Inspection results themselves are not published
- Energyno recordNo energy score on record
- Elevatorsnot requiredNo elevators registered to this building
Sources
23 datasetsFEMA
- FEMA National Flood Hazard Layer2026-10-19
- OpenFEMA NFIP Redacted Claims (v3)2026-09-09
NYC DCP
- NYC GeoSearch (address directory)2026-10-19
- PLUTO (tax lot data)2026-08-24
NYC DEP
NYC DEP / Mayor's Office
- NYC Stormwater Flood Maps2024-07-03
NYC DOB
- DOB NOW Elevator Safety Compliance2026-10-18
- DOB NOW: Build – Approved Permits2026-10-17
- DOB NOW: Safety Boiler2026-10-17
- DOB NOW: Safety – Facades Compliance Filings2026-10-18
- DOB Permit Issuance (BIS)2026-10-19
- DOB Safety Violations2026-10-18
- DOB Violations2026-10-18
NYC DOB / Mayor's Office
NYC HPD
- Buildings Subject to HPD Jurisdiction2026-08-12
- Housing Maintenance Code Complaints and Problems2026-10-19
- Housing Maintenance Code Violations2026-10-19
- Multiple Dwelling Registrations2026-08-12
- Registration Contacts2026-08-12
NYC OTI
- AddressPoint2026-07-07
- Building Footprints2026-10-11
NYC Rent Guidelines Board / NYS HCR
Each date is when we last checked that dataset, not when the record itself was created.