Upon the creation of Warren County in 1793, court was first held at the home of James McCormick. In 1796, the location was moved to the plantation of Sterling Gardner, which was designated the official county seat. It is said that a courthouse was built on the Warrenton square in 1809, but little to no evidence has been found to corroborate this fact. In 1820-1821, the first documented courthouse was built and it served Warren County until it was destroyed by fire in 1909. The present courthouse replaced it upon completion in 1910. It was the work of Walter Chamberlain, an architect in Birmingham, Alabama, responsible for at least two other Georgia courthouses.

National Register of Historic Places