11 Riverside Drive, Manhattan
A 1950 elevator apartment building in the West End-Collegiate Historic District Extension historic district, on Riverside Drive, zoned R10A.
11 Riverside Drive is an elevator apartment building in Manhattan, New York City (BBL 1011840031). The property is zoned R10A, on a 76,300 sq ft lot, with 19 floors and 636 residential units. It was built in 1950. 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 | 1011840031 |
|---|---|
| Borough | Manhattan — Community District 7 |
| Neighborhood | Upper West Side-Lincoln Square |
| ZIP code | 10023 |
| Zoning district | R10A |
| Building class | D4 — elevator apartment building (what’s a building class?) |
| Land use | 03 — Multi-family elevator buildings |
| Lot area | 76,300 sq ft |
| Floors | 19 |
| Residential units | 636 |
| Year built | 1950 |
| FAR | 9.04 built · 10 max residential · 0 max commercial Learn: What is FAR? |
| Historic district | West End-Collegiate Historic District Extension |
| Flood zone | Not in a FEMA Special Flood Hazard Area |
Public records
- 1 open Department of Buildings violation
- 3 open ECB (OATH) violations — $7,500 in penalties due
- 0 open Housing Preservation & Development violations
- Façade safety filing status: SAFE (latest filing 2024-12-30)
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.