Manhattan · BBL 1000290045

13 South William Street

New York, NY 10004 · Manhattan

Also written as: 13 S William St · 13 South William Street

Owner of record: WILLIAM REALTY, LLC.

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

Assessment (FY2027)

  • Assessed value: $903,600
  • Market value: $2,008,000
  • Tax class: 4

Building

  • Office (O5)
  • Built 1839, altered 2008
  • 0 residential / 2 units
  • 3 floors
  • Zoning: C5-5
  • Lot area: 1,443 sf
  • Building area: 3,469 sf
  • Historic district: Stone Street Historic District

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/13-south-william-street-1000290045

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