Manhattan · BBL 1000290036
1 William Street
New York, NY 10004 · Manhattan
Also written as: 1 William St · 1 William Street
Owner of record: INTESA SANPAOLO S.P.A.
Snapshot updated 2026-09-02 — open the app to refresh for live data.
Assessment (FY2027)
- Assessed value: $9,079,200
- Market value: $20,176,000
- Tax class: 4
Building
- Office (O3)
- Built 1907, altered 1983
- 0 residential / 4 units
- 12 floors
- Zoning: C5-5
- Lot area: 8,409 sf
- Building area: 105,000 sf
- Landmark: INDIVIDUAL LANDMARK
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/1-william-street-1000290036
Estimates are automated, not appraisals. Disclaimer · Terms · Privacy · Contact