1 William Street

The city photographed every building for its tax records around 1940 and again in the 1980s. NYC Municipal Archives.

Written with AI from the source each entry cites, then fact-checked.

1907
July
Francis Kimball completes a Renaissance Revival bank headquarters
Architects Francis H. Kimball and Julian Clarence Levi build an 11-story, limestone-clad headquarters for the investment bank J. and W. Seligman and Company. Construction starts in May 1906, and the building is finished by July 1907 at a cost of $1 million. The Renaissance Revival design, with touches resembling Baroque Revival, stands at the junction of William, South William, and Beaver streets.
Source: Wikipedia
1928
Lehman Brothers buys the building for its headquarters
Lehman Brothers buys 1 William Street in 1928, after the Seligman firm had moved out in 1919 and the marine insurers Wilcox, Peck and Hughes had bought the building. Lehman spends $500,000 on renovations and moves in during June 1929. The investment bank keeps its headquarters here until 1980.
Source: Wikipedia
1996
February 13
The city designates 1 William Street a landmark
The New York City Landmarks Preservation Commission designates 1 William Street a landmark on February 13, 1996. Banca Commerciale Italiana had bought the building in 1981 and built an 11-story annex to the south between 1982 and 1986. Intesa Sanpaolo has owned it since 2008.
Source: Wikipedia

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