723 St Nicholas Avenue, Manhattan
A 1907 elevator apartment building on St Nicholas Avenue with 74 open violations on record across city enforcement files.
723 St Nicholas Avenue is an elevator apartment building in Manhattan, New York City (BBL 1020610029). The property is zoned R6A, on a 7,411 sq ft lot, with 6 floors and 40 residential units. It was built in 1907. The lot is not inside a FEMA Special Flood Hazard Area. NYC municipal records show 74 open building violations for this lot as of 2026-07-05.
Property facts
| BBL | 1020610029 |
|---|---|
| Borough | Manhattan — Community District 9 |
| Neighborhood | Hamilton Heights-Sugar Hill |
| Zoning district | R6A |
| Building class | D1 — elevator apartment building (what’s a building class?) |
| Land use | 03 — Multi-family elevator buildings |
| Lot area | 7,411 sq ft |
| Floors | 6 |
| Residential units | 40 |
| Year built | 1907 |
| FAR | 4.56 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
- 8 open Department of Buildings violations
- 5 open ECB (OATH) violations — $18,125 in penalties due
- 61 open Housing Preservation & Development violations
- Façade safety filing status: SWARMP (latest filing 2020-09-16)
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.