833 Madison Avenue, Manhattan

A 1886 retail store building on Madison Avenue with 19 open violations on record across city enforcement files.

833 Madison Avenue is a retail store building in Manhattan, New York City (BBL 1013840021). The property is zoned C5-1, on a 2,593 sq ft lot, with 5 floors and 9 residential units. It was built in 1886. The lot is not inside a FEMA Special Flood Hazard Area. NYC municipal records show 19 open building violations for this lot as of 2026-07-05.

Property facts

BBL	1013840021
Borough	Manhattan — Community District 8
Neighborhood	Upper East Side-Carnegie Hill
Zoning district	C5-1
Building class	K4 — retail store building (what’s a building class?)
Land use	04 — Mixed residential & commercial buildings
Lot area	2,593 sq ft
Floors	5
Residential units	9
Year built	1886
FAR	3.59 built · 10 max residential · 4 max commercial Learn: What is FAR?
Historic district	Upper East Side Historic District
Flood zone	Not in a FEMA Special Flood Hazard Area

Public records

0 open Department of Buildings violations
0 open ECB (OATH) violations
19 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.