39 East 31 Street, Manhattan
A 1925 office building on East 31 Street carrying 6.38 FAR of unused commercial development rights on record under its C5-2 zoning.
39 East 31 Street is an office building in Manhattan, New York City (BBL 1008610031). The property is zoned C5-2, on a 2,123 sq ft lot, with 5 floors and 5 residential units. It was built in 1925. The lot is not inside a FEMA Special Flood Hazard Area. NYC municipal records show 2 open building violations for this lot as of 2026-07-05.
Property facts
| BBL | 1008610031 |
|---|---|
| Borough | Manhattan — Community District 5 |
| Neighborhood | Midtown South-Flatiron-Union Square |
| Zoning district | C5-2 |
| Building class | O5 — office building (what’s a building class?) |
| Land use | 05 — Commercial & office buildings |
| Lot area | 2,123 sq ft |
| Floors | 5 |
| Residential units | 5 |
| Year built | 1925 |
| FAR | 3.62 built · 10 max residential · 10 max commercial Learn: What is FAR? |
| Flood zone | Not in a FEMA Special Flood Hazard Area |
Public records
- 1 open Department of Buildings violation
- 1 open ECB (OATH) violation
- 0 open Housing Preservation & Development violations
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.