Manhattan · Unit 6C · BBL 1006931119

551 West 21st Street, Unit 6C

New York, NY 10011 · Manhattan

Also written as: 551 W 21st St Apt 6C · 551 West 21st Street #6C · 551 W 21st St Unit 6C

Part of 144 11th Avenue Condominium

Owner of record: SWEENEY, KATHRYN

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

Assessment (FY2027)

  • Assessed value: $559,321
  • Market value: $1,242,936
  • Tax class: 2

Building

  • Condominium (RM)
  • Built 2013
  • 44 residential / 46 units
  • 20 floors
  • Zoning: C6-3 / M1-5
  • Lot area: 17,388 sf
  • Building area: 153,053 sf
  • Flood zone: 1

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/551-west-21-street-6c-1006931119

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