166 William Street, Manhattan
Commercial · built 1900 · Block 93, Lot 25.
Building permits
- Alteration — Multi-Family, filed Jul 8, 2026, estimated cost $8K, 16 units
- Alteration — Mid-Rise, filed Jul 8, 2026, estimated cost $7K, 16 units, 13 stories
- Alteration — Multi-Family, filed Jan 14, 2026, estimated cost $5K, 47 units
- Major Renovation — Mid-Rise, filed Nov 20, 2025, estimated cost $3.3M, 16 units, 13 stories
- Alteration — Residential, filed Sep 21, 2022, estimated cost $9K, 2 units
- Alteration — Residential, filed Sep 21, 2022, estimated cost $21K, 2 units
- Alteration — Residential, filed Apr 5, 2022, estimated cost $30K, 2 units
- Alteration — Residential, filed Feb 9, 2022, estimated cost $108K, 2 units, 5 stories
Property taxes
- Assessment
- $1,415,250
- Last year’s tax
- $146,526
- Land value
- $197,550
- Improvement value
- $1,217,700
Zoning
C6-4: built 5.99 of 10.00 allowed floor area ratio.