729 St Nicholas Avenue, Manhattan
A 1886 walk-up apartment building on St Nicholas Avenue carrying 1.76 FAR of unused residential development rights on record under its R6A zoning.
729 St Nicholas Avenue is a walk-up apartment building in Manhattan, New York City (BBL 1020610032). The property is zoned R6A, on a 3,125 sq ft lot, with 4 floors and 14 residential units. It was built in 1886. The lot is not inside a FEMA Special Flood Hazard Area. NYC municipal records show 283 open building violations for this lot as of 2026-07-05.
Property facts
| BBL | 1020610032 |
|---|---|
| Borough | Manhattan — Community District 9 |
| Neighborhood | Hamilton Heights-Sugar Hill |
| ZIP code | 10031 |
| Zoning district | R6A |
| Building class | C6 — walk-up apartment building (what’s a building class?) |
| Land use | 02 — Multi-family walk-up buildings |
| Lot area | 3,125 sq ft |
| Floors | 4 |
| Residential units | 14 |
| Year built | 1886 |
| FAR | 1.24 built · 3 max residential · 0 max commercial Learn: What is FAR? |
| Historic district | Hamilton Heights / Sugar Hill Historic District |
| Flood zone | Not in a FEMA Special Flood Hazard Area |
Public records
- 1 open Department of Buildings violation
- 4 open ECB (OATH) violations — $10,625 in penalties due
- 278 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.