Manhattan · Unit 4 · BBL 1014101303

823 Park Avenue, Unit 4

New York, NY 10021 · Manhattan

Also written as: 823 Park Ave Apt 4 · 823 Park Avenue #4 · 823 Park Ave Unit 4

Part of 823 Park Avenue Condominium

Owner of record: GERSTNER, GERVAISE L

Snapshot updated 2026-09-02 — open the app to refresh for live data.

Assessment (FY2027)

  • Assessed value: $524,997
  • Market value: $1,166,661
  • Tax class: 2

Building

  • Condominium (RM)
  • Built 1961
  • 99 residential / 108 units
  • 16 floors
  • Zoning: C1-8X / R8B
  • Lot area: 11,851 sf
  • Building area: 123,092 sf

Official records

ZoLa zoning · DOF property tax · Property Portal · ACRIS deeds/mortgages · DOB profile · Tax map · Map

All data sourced from NYC Department of Finance / PLUTO / ACRIS / HPD public records. https://www.sageops.ai/property/manhattan/823-park-avenue-4-1014101303

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