16 West 21 Street, Manhattan
A condominium on West 21 Street carrying 2.15 FAR of unused commercial development rights on record on a 2,300 sq ft lot, zoned C6-4A.
16 West 21 Street is a condominium in Manhattan, New York City (BBL 1008227505). The property is zoned C6-4A, on a 2,300 sq ft lot, with 14 floors and 9 residential units. It was built in 2009. The lot is not inside a FEMA Special Flood Hazard Area. NYC municipal records show 19 open building violations for this lot as of 2026-07-05.
Property facts
| BBL | 1008227505 |
|---|---|
| Borough | Manhattan — Community District 5 |
| Neighborhood | Midtown South-Flatiron-Union Square |
| ZIP code | 10010 |
| Zoning district | C6-4A |
| Building class | R1 — condominium (what’s a building class?) |
| Land use | 02 — Multi-family walk-up buildings |
| Lot area | 2,300 sq ft |
| Floors | 14 |
| Residential units | 9 |
| Year built | 2009 |
| FAR | 7.85 built · 10 max residential · 10 max commercial Learn: What is FAR? |
| Historic district | Ladies' Mile Historic District |
| Flood zone | Not in a FEMA Special Flood Hazard Area |
Public records
- 16 open Department of Buildings violations
- 3 open ECB (OATH) violations
- 0 open Housing Preservation & Development violations
- Façade safety filing status: SAFE (latest filing 2025-10-01)
Violation counts as of 2026-07-05.
Absence of a record means none on file in NYC municipal records — not a certification of compliance.
The complete dossier also covers:
- Buildable floor area (residential & commercial)
- Recorded ownership & last sale
- Recorded mortgages & open debt stack
- LL97 carbon exposure by compliance period
- Flood coverage percentage & base flood elevation
- Climate projections for this lot
- Open permits & construction pipeline
- Distress signal convergence
- Air rights & transferable development rights
- Comparable sales (Pro)
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Data: NYC municipal records (Departments of City Planning, Buildings, Finance) and FEMA. See our sources and methodology. Data as of 2026-07-11.