Manhattan · Unit 10C · BBL 1013951126

521 Park Avenue, Unit 10C

New York, NY 10065 · Manhattan

Also written as: 521 Park Ave Apt 10C · 521 Park Avenue #10C · 521 Park Ave Unit 10C

Part of 521 Park Avenue Condominium

Owner of record: PETER BOSSHARDDECLARATION OF TRUST

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

Assessment (FY2027)

  • Assessed value: $358,735
  • Market value: $797,190
  • Tax class: 2

Last recorded sale

$2,400,000 on 2026-08-21 (class R4)

Building

  • Condominium (RM)
  • Built 1963
  • 165 residential / 166 units
  • 20 floors
  • Zoning: C1-9 / R8B
  • Lot area: 17,575 sf
  • Building area: 206,883 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/521-park-avenue-10c-1013951126

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