1 Hanover Square, 1913.

This Italianate Brownstone was thought to be built by Robert F. Carman in 1851-54 for the Hanover Bank. Carman, a developer and builder made his fortune rebuilding the "burnt district" that had witnessed a fire that ravaged the area in 1835. The exterior of the building has largely remained unchanged since its construction. The three-story masonry structure is decorated with windows that diminish in size and ornament at each successive level. At the top floor, windows are almost square in proportion, while on the ground floor they are large and tall, flanked by pilasters and topped by an arch. The entry to the building is in the center, though the building once had two stoops because it hosted multiple businesses.

The Cotton Exchange assumed ownership in 1871 and, serving as its sole tenant, unified the building. In doing so, the Exchange added the clock above the entrance with the words "Cotton Exchange" on a scroll around it. The Cotton Exchange was the country's first bank dealing in commodity futures and the second in the world that operated this way. Following the departure of the Cotton Exchange, 1 Hanover Square had a series of tenants, including Tobacco Importers Maitland and Company, the Grace shipping company, and the Haitian Embassy. In 1914, "the India House" came to take over the building.

Diplomat Willard Straight and industrialist James A. Farley conceived of it as a place where merchants and bankers could converge and discuss American commerce and trade. The name India House was chosen to evoke the exoticism of the faraway indies. They hired the architects Delano and Aldrich to convert the building to a club. Delano and Aldrich stripped the interior of much of its ornament, adding maritime accents to take its place. The India Club is still operational today, though its restaurant can be enjoyed by any member of the public, so long as they respect the dress code.