434 Riverside Drive, Manhattan
A 1899 indoor public assembly building on Riverside Drive carrying 2.08 FAR of unused residential development rights on record under its R8 zoning.
434 Riverside Drive is an indoor public assembly building in Manhattan, New York City (BBL 1018960090). The property is zoned R8, on a 3,745 sq ft lot, with 5 floors and 1 residential units. It was built in 1899. The lot is not inside a FEMA Special Flood Hazard Area. NYC municipal records show 61 open building violations for this lot as of 2026-07-05.
Property facts
| BBL | 1018960090 |
|---|---|
| Borough | Manhattan — Community District 9 |
| Neighborhood | Morningside Heights |
| Zoning district | R8 |
| Building class | P2 — indoor public assembly building (what’s a building class?) |
| Land use | 08 — Public facilities & institutions |
| Lot area | 3,745 sq ft |
| Floors | 5 |
| Residential units | 1 |
| Year built | 1899 |
| FAR | 3.94 built · 6.02 max residential · 0 max commercial Learn: What is FAR? |
| Historic district | Morningside Heights Historic District |
| Flood zone | Not in a FEMA Special Flood Hazard Area |
Public records
- 2 open Department of Buildings violations
- 4 open ECB (OATH) violations — $2,500 in penalties due
- 55 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.