100 William Street, Manhattan, NY 10038

100 William Street, Manhattan, NY 10038 is a 22-story office building, built in 1973, on a 18,513 sq ft lot. The city's 2027 market value is $102,940,000. It last sold on 12/12/2025 for $70,000,000. City records list 141+ violations, 11 mortgages and 1 sale for this lot.

1. 2027City market value set at $102,940,000
2. 12/12/2025Sold for $70,000,000
3. 1973Building completed

Address

100 William Street

Borough

Manhattan

Zip code

10038

Block & lot

00068-0036

BBL

1000680036

Condo number

—

Community district

101

School district

2

Council district

1

Historic district

—

Owner

Locked. Included in the full report.Unlock owner name for free

Property type

Office (O4)

Square feet

377,120 sq ft

Building dimensions

Locked. Included in the full report.

Stories

22

Year built

1973

Year altered

—

Residential units

0

Total units

76

Buildings on lot

1

Lot sq ft

18,513

Lot dimensions

122 ft x 164 ft

Zoning

Locked. Included in the full report.

FAR

Locked. Included in the full report.

Buildable area

Locked. Included in the full report.

Market value

$102,940,000

Tax year

2027

Last sale date

12/12/2025

Last sale price

$70,000,000

Tax amount

Locked. Included in the full report.

Loan amount

Locked. Included in the full report.

• Pre-foreclosureAny open foreclosure case on the lot: plaintiff, filing date, case type and court status.
• Owner & contacts· 100+ people and companiesOwner of record is a companyOwner of record, deed owners, mailing address, registered officers and managing agent, permit applicants.
• Sales history· 1 saleEvery priced sale on the lot, with unit and building class at the time of sale.
• Financials· 11 mortgagesOpen mortgages, lenders, loan amounts, recording and maturity dates, estimated equity.
• Tax· 5 years of assessmentsAnnual tax bill, tax class and assessment history by roll year.
• Permits· 100+ permitsBuilding permit filings, job types, status and estimated cost.
• DevelopmentZoning districts, residential, commercial and facility FAR, unused air rights.
• Violations· 141+ violationsOpen and closed housing and building violations with balances due.

When was 100 William Street built?

100 William Street was built in 1973, according to the city's lot file.

How many units does 100 William Street have?

100 William Street has 76 units across 22 stories.

When did 100 William Street last sell?

It last sold on 12/12/2025 for $70,000,000, according to the city's recorded sales.

What is 100 William Street worth?

The city's 2027 market value for 100 William Street is $102,940,000. That is the city's assessment estimate, not an appraisal or an asking price.

Who owns 100 William Street?

Create a free Hercules account to see the owner of record for 100 William Street. The full report adds the deed owners, the mailing address and the people named on the building's registrations.

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City market value and tax year

Market value is the city's estimate for tax purposes. This is not a current sale price or an appraisal.

Valuation tax year: 2027

Recorded sale

Latest recorded sale date: 12/12/2025

Refresh dates are not available in this preview. The tax year and sale date describe the records, not when Hercules last refreshed them.

Product facts · Market value, assessed value and sale price explained