Manhattan · Unit 23G · BBL 1000251538

15 William Street, Unit 23G

New York, NY 10005 · Manhattan

Also written as: 15 William St Apt 23G · 15 William Street #23G · 15 William St Unit 23G

Part of 15 William Street Condominium

Owner of record: WBL FIDI WILLIAM LLC

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

Assessment (FY2027)

  • Assessed value: $152,782
  • Market value: $339,516
  • Tax class: 2

Building

  • Condominium (RM)
  • Built 2005
  • 320 residential / 322 units
  • 44 floors
  • Zoning: C5-5
  • Lot area: 23,649 sf
  • Building area: 374,614 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/15-william-street-23g-1000251538

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