Manhattan · Unit 12A · BBL 1013951130

521 Park Avenue, Unit 12A

New York, NY 10065 · Manhattan

Also written as: 521 Park Ave Apt 12A · 521 Park Avenue #12A · 521 Park Ave Unit 12A

Part of 521 Park Avenue Condominium

Owner of record: HAHN, ALEXANDRA M

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

Assessment (FY2027)

  • Assessed value: $134,193
  • Market value: $298,208
  • Tax class: 2

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-12a-1013951130

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