635 Riverside Drive, Manhattan

A 1912 elevator apartment building on Riverside Drive with 97 open violations on record across city enforcement files.

635 Riverside Drive is an elevator apartment building in Manhattan, New York City (BBL 1020880051). The property is zoned R8, on a 12,500 sq ft lot, with 11 floors and 67 residential units. It was built in 1912. The lot is not inside a FEMA Special Flood Hazard Area. NYC municipal records show 97 open building violations for this lot as of 2026-07-05.

Property facts

BBL	1020880051
Borough	Manhattan — Community District 9
Neighborhood	Hamilton Heights-Sugar Hill
ZIP code	10031
Zoning district	R8
Building class	D1 — elevator apartment building (what’s a building class?)
Land use	03 — Multi-family elevator buildings
Lot area	12,500 sq ft
Floors	11
Residential units	67
Year built	1912
FAR	8.62 built · 6.02 max residential · 0 max commercial Learn: What is FAR?
Flood zone	Not in a FEMA Special Flood Hazard Area

Public records

13 open Department of Buildings violations
13 open ECB (OATH) violations — $9,905 in penalties due
71 open Housing Preservation & Development violations
Façade safety filing status: UNFILED

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)

Run a free lookupFree account — no card required

See plans & the one-time dossier

Watch this propertyAlerts on new permits, violations & sales

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.