The Chester County Courthouse is a historic courthouse building located in the county seat of West Chester, Chester County, Pennsylvania. It was built in 1846 at a cost of $55,346 and was designed by Thomas U. Walter. Walter also designed the dome of the United States Capitol. An addition, designed by T. Roney Williamson and constructed from Indiana Limestone, was added in 1893. Another addition was added in 1966.It was listed on the National Register of Historic Places on June 5, 1972, and located in the West Chester Downtown Historic District. It was documented by the Historic American Buildings Survey in July 1958.
