231 East 123 Street, Manhattan

A 2018 elevator apartment building on East 123 Street with 47 open violations on record across city enforcement files.

231 East 123 Street is an elevator apartment building in Manhattan, New York City (BBL 1017880013). The property is zoned R7B, on a 2,523 sq ft lot, with 6 floors and 11 residential units. It was built in 2018. The lot is not inside a FEMA Special Flood Hazard Area. NYC municipal records show 47 open building violations for this lot as of 2026-07-05.

Property facts

BBL	1017880013
Borough	Manhattan — Community District 11
Neighborhood	East Harlem (North)
ZIP code	10035
Zoning district	R7B
Building class	D1 — elevator apartment building (what’s a building class?)
Land use	03 — Multi-family elevator buildings
Lot area	2,523 sq ft
Floors	6
Residential units	11
Year built	2018
FAR	4.59 built · 3 max residential · 0 max commercial Learn: What is FAR?
Flood zone	Not in a FEMA Special Flood Hazard Area

Public records

7 open Department of Buildings violations
15 open ECB (OATH) violations — $96,875 in penalties due
25 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)

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Data: NYC municipal records (Departments of City Planning, Buildings, Finance) and FEMA. See our sources and methodology. Data as of 2026-07-11.