55 East 90 Street, Manhattan

A 1904 educational facility in the Expanded Carnegie Hill Historic District historic district, on East 90 Street, zoned R8B.

55 East 90 Street is an educational facility in Manhattan, New York City (BBL 1015020026). The property is zoned R8B, on a 2,517 sq ft lot, with 6 floors and 1 residential units. It was built in 1904. The lot is not inside a FEMA Special Flood Hazard Area. NYC municipal records show 8 open building violations for this lot as of 2026-07-05.

Property facts

BBL	1015020026
Borough	Manhattan — Community District 8
Neighborhood	Upper East Side-Carnegie Hill
ZIP code	10128
Zoning district	R8B
Building class	W3 — educational facility (what’s a building class?)
Land use	08 — Public facilities & institutions
Lot area	2,517 sq ft
Floors	6
Residential units	1
Year built	1904
FAR	4.25 built · 4 max residential · 0 max commercial Learn: What is FAR?
Historic district	Expanded Carnegie Hill Historic District
Flood zone	Not in a FEMA Special Flood Hazard Area

Public records

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