309 East 56 Street, Manhattan
A 1910 office building on East 56 Street carrying 2.37 FAR of unused residential development rights on record under its R8 zoning.
309 East 56 Street is an office building in Manhattan, New York City (BBL 1013490006). The property is zoned R8, on a 6,527 sq ft lot, with 4 floors and 8 residential units. It was built in 1910. The lot is not inside a FEMA Special Flood Hazard Area.
Property facts
| BBL | 1013490006 |
|---|---|
| Borough | Manhattan — Community District 6 |
| Neighborhood | East Midtown-Turtle Bay |
| ZIP code | 10022 |
| Zoning district | R8 |
| Building class | O2 — office building (what’s a building class?) |
| Land use | 05 — Commercial & office buildings |
| Lot area | 6,527 sq ft |
| Floors | 4 |
| Residential units | 8 |
| Year built | 1910 |
| FAR | 3.65 built · 6.02 max residential · 0 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)
Run a free lookupFree account — no card required
See plans & the one-time dossierWatch this propertyAlerts on new permits, violations & sales
Nearby on this block
Data: NYC municipal records (Departments of City Planning, Buildings, Finance) and FEMA. See our sources and methodology. Data as of 2026-07-11.