504 East 90 Street, Manhattan
Inside a FEMA-mapped flood zone, this elevator apartment building on East 90 Street carries 0.35 FAR of unused residential development rights on record.
504 East 90 Street is an elevator apartment building in Manhattan, New York City (BBL 1015860043). The property is zoned R8B, on a 19,448 sq ft lot, with 6 floors and 68 residential units. It was built in 1942. The lot is inside a FEMA Special Flood Hazard Area. NYC municipal records show 11 open building violations for this lot as of 2026-07-05.
Property facts
| BBL | 1015860043 |
|---|---|
| Borough | Manhattan — Community District 8 |
| Neighborhood | Upper East Side-Yorkville |
| Zoning district | R8B |
| Building class | D4 — elevator apartment building (what’s a building class?) |
| Land use | 03 — Multi-family elevator buildings |
| Lot area | 19,448 sq ft |
| Floors | 6 |
| Residential units | 68 |
| Year built | 1942 |
| FAR | 3.65 built · 4 max residential · 0 max commercial Learn: What is FAR? |
| Flood zone | In a FEMA Special Flood Hazard Area |
Public records
- 3 open Department of Buildings violations
- 1 open ECB (OATH) violation — $1,250 in penalties due
- 7 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)
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.