The oldest building on the square is the William Waring Property, at 12 West State Street, which dates to 1825.

[1] The second square established in Savannah, it was originally named Percival Square, for John Percival, 1st Earl of Egmont, generally regarded as the man who gave the colony of Georgia its name (a tribute to Great Britain's King George II).

She and other members of the Colonial Dames of the State of Georgia planned to erect a new monument to Tomochichi, made of granite from Stone Mountain.

It stands in the southeast corner of the square and eulogizes Tomochichi as a great friend of James Oglethorpe and the people of Georgia.

Bradley Lock and Key, located in the Patrick Duffy Building at 24 East State Street, also in the northeastern tything lot, is the oldest operating business in Savannah.