56 West 66th Street, Manhattan
A 1903 office building on West 66th Street carrying 7.57 FAR of unused commercial development rights on record under its C4-7 zoning.
56 West 66th Street is an office building in Manhattan, New York City (BBL 1011180052). The property is zoned C4-7, on a 17,546 sq ft lot, with 3.5 floors and 1 residential units. It was built in 1903. The lot is not inside a FEMA Special Flood Hazard Area.
Property facts
| BBL | 1011180052 |
|---|---|
| Borough | Manhattan — Community District 7 |
| Neighborhood | Upper West Side-Lincoln Square |
| ZIP code | 10023 |
| Zoning district | C4-7 |
| Building class | O2 — office building (what’s a building class?) |
| Land use | 05 — Commercial & office buildings |
| Lot area | 17,546 sq ft |
| Floors | 3.5 |
| Residential units | 1 |
| Year built | 1903 |
| FAR | 2.43 built · 10 max residential · 10 max commercial Learn: What is FAR? |
| Flood zone | Not in a FEMA Special Flood Hazard Area |
Public records
No open violations on record for this lot.
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.