Manhattan · BBL 1000780004
123 William Street
New York, NY 10038 · Manhattan
Also written as: 123 William St · 123 William Street
Owner of record: ARC NYC123WILLIAM, LLC
Snapshot updated 2026-09-02 — open the app to refresh for live data.
Assessment (FY2027)
- Assessed value: $44,673,300
- Market value: $99,274,000
- Tax class: 4
Building
- Office (O4)
- Built 1912
- 0 residential / 41 units
- 26 floors
- Zoning: C6-4
- Lot area: 21,242 sf
- Building area: 493,039 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/123-william-street-1000780004
Estimates are automated, not appraisals. Disclaimer · Terms · Privacy · Contact