166 William Street, Manhattan
Commercial · built c. 1900 · Block 93, Lot 25.
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Building permits
- Alteration, filed Jul 8, 2026, estimated cost $7K, described as “Proposed installation of heavy duty sidewalk shed for remedial repairs as per plans. No change in use, occupancy, or egress under this application. Live load 300 per square feet. Sidewalk shed shall comply with Chapter # 33 of the 2022”
- Alteration, filed Jul 8, 2026, estimated cost $8K, described as “Proposed installation of pipe scaffold for remedial repairs as per plans. No change in use occupancy or egress under this application.”
- Alteration, filed Jan 14, 2026, estimated cost $5K, described as “Herewith to propose temporary 8' high plywood construction fence”
- Major Renovation — Hotel, filed Nov 20, 2025, estimated cost $3.3M, 14 hotel rooms added, 13 stories, described as “Proposed 13-sty transient hotel with elements of existing 5-sty. Building being reused.”
- Alteration, filed Sep 21, 2022, estimated cost $9K, described as “Register boilers on floors: 3, 4 & 5.”
- Alteration, filed Sep 21, 2022, estimated cost $21K, described as “Register gas-fired equipment for floors: cellar, 2, 3, 4 & 5 floor.”
- Alteration, filed Apr 5, 2022, estimated cost $30K, described as “Install plumbing fixtures & gas cooking equipment with related gas piping at first floor as per proposed plan submitted”
- Alteration, filed Feb 9, 2022, estimated cost $108K, described as “Filng for interior renovation of existing commercial space including new servce counter; install new ceramic tiles; new interior partition wall; shelving; all work as per plan filed. Plumbing and mechanical to be filed separtly in dobnow.”
Property taxes
- Assessment
- $1,415,250
- 2026–27 tax
- $146,526
- Market value (city estimate)
- $3,145,000
- Taxable value
- $1,350,720
- Assessed land
- $197,550
- Assessed improvements
- $1,217,700
Zoning
C6-4: floor area ratio 5.99 built, 10.00 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Board and land use applications
- LM Plaza Applicability Text Amendment (City Planning P2017M0129): Completed, decided Jul 26, 2017. Zoning text amendment to Section 91-24 affecting the applicability of the public plaza bonus for sites within 50' of designated streets in C6-4 districts within the Special Lower Manhattan District.