Whitehall Building (at right), May 12, 1936.

Named for the 17th century home of Peter Stuyvesant, which was located nearby, the Whitehall building is a 20-story office building constructed between 1902 and 1904. Henry J. Hardenbergh designed this speculative building with bold brick colors. A major real estate success for its developers, they quickly planned the construction of an annex. The 31-story annex with tower (seen behind the earlier building here) is called the Greater Whitehall, and was designed by the firm of Clinton & Russell in the same neo-Renasiance style. Completed in 1910 the combined building complex was the largest office structure in the city at the time. Because of this size and the landfill on which they were constructed, the buildings necessitated innovative foundation design and installation. To make the foundations strong and watertight the engineers created a system of timber-lined pneumatic caissons inside steel-lined pneumatic caissons sunk into the rock and a reinforced concrete coffer dam with a 2-foot-thick floor and 7-foot-thick walls.

One of the best known 20th century tenants was the Moran Towing Company, a tugboat firm. Supposedly prior to the use of work radios, a worker located on one of the upper floors would watch with a telescope for incoming ships, and when he spotted one, he would use a six-foot megaphone to shout instructions to the Moran tugboats docked at the Battery.