Governor's Mansion 800 Richland St.	Lace House 803 Richland St.	Caldwell-Hampton- Boylston House 829 Richland St.	Palmetto Iron Works and Armory 1802 Lincoln St.	821 Calhoun St.
823 Calhoun St.	903 Calhoun St.	2001 Lincoln St.	2003 Lincoln St.	1919 Gadsden St.
723 Laurel St.

The area of the Columbia Historic District I was established as a result of Columbia’s development into a center of government and trade between the upper and lower parts of the state. Also known as Arsenal Hill, the area was a complex of fine mansions and attractive homes built before the Civil War. The district is politically significant as a center of state and nationally related affairs with the Governor’s Mansion as the focal point. It is architecturally significant for the variety of architectural styles indicative or unique to the area such as Greek Revival, Italianate, Classical Revival, and the “Columbia Cottage.” Noteworthy landscape architecture in the district includes the Caldwell-Hampton-Boylston House gardens, a significant example of evolving garden planning from the time the house was built ca. 1830 through its development formally in the 1890s to the present. Arsenal Hill has retained stately tree-lined streets and a number of its original homes. Listed in the National Register May 6, 1971.

View a map showing the boundaries of the Columbia Historic District I.