# 166 William Street, Manhattan

Commercial · built c. 1900 · Block 93, Lot 25.

On Umarelli: https://umarelli.org/nyc/1000930025/166-william-street

More construction in Seaport: https://umarelli.org/nyc/manhattan/seaport.md

## 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.

## Recent sales

- Dec 16, 2022: $15,000,000

Open-market sales since 2016, from the Department of Finance’s sales files.

## 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.

From New York City and Jersey City public records, refreshed within a day of each release. Sources: https://umarelli.org/sources. Methodology and corrections: https://umarelli.org/methodology