Manhattan · BBL 1019760020

509 West 121st Street

New York, NY 10027 · Manhattan

Also written as: 509 W 121st St · 509 West 121st Street

Owner of record: TEACHERS COLLEGE COLUMBIA UNIVERITY

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

Assessment (FY2027)

  • Assessed value: $5,907,150
  • Market value: $13,127,000
  • Tax class: 2

Building

  • Elevator apartment (D3)
  • Built 1911, altered 1989
  • 110 residential / 110 units
  • 8 floors
  • Zoning: R8
  • Lot area: 14,525 sf
  • Building area: 81,632 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/509-west-121-street-1019760020

Estimates are automated, not appraisals. Disclaimer · Terms · Privacy · Contact