99 Nassau Street, Manhattan
A 1873 office building on Nassau Street carrying 5.3 FAR of unused commercial development rights on record under its C5-5 zoning.
99 Nassau Street is an office building in Manhattan, New York City (BBL 1000890001). The property is zoned C5-5, on a 10,310 sq ft lot, with 10 floors and 159 residential units. It was built in 1873. The lot is not inside a FEMA Special Flood Hazard Area. NYC municipal records show 4 open building violations for this lot as of 2026-07-05.
Property facts
| BBL | 1000890001 |
|---|---|
| Borough | Manhattan — Community District 1 |
| Neighborhood | Financial District-Battery Park City |
| ZIP code | 10038 |
| Zoning district | C5-5 |
| Building class | O6 — office building (what’s a building class?) |
| Land use | 05 — Commercial & office buildings |
| Lot area | 10,310 sq ft |
| Floors | 10 |
| Residential units | 159 |
| Year built | 1873 |
| FAR | 9.7 built · 10 max residential · 15 max commercial Learn: What is FAR? |
| Flood zone | Not in a FEMA Special Flood Hazard Area |
Public records
- 0 open Department of Buildings violations
- 4 open ECB (OATH) violations — $8,780 in penalties due
- 0 open Housing Preservation & Development violations
- Façade safety filing status: SWARMP (latest filing 2021-02-25)
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.