Built in 1904, the Sheridan county courthouse is a relatively unaltered, unpretentious example of the Property Type, County Capitol. Identifying features of the Property Type include its standing as a good example of public architecture in the community, presence of features distinctive to courthouse use, a tower, use of permanent materials, provision for fireproof storage vaults, and the impression of a government building of permanence and solidity. Built in 1904 the courthouse is the work of Omaha architect W. T. Misner.
The two-story brick-faced courthouse rests on a low rock-faced Hot Springs sandstone raised basement and has limited attic space ln the gabled front-facing wing. Heavy simple stone pedestals occur at the entry steps. Additional gables, also with simple brick detail at the ends, adorn the east and west facades. Red brick (Alliance Red) is laid in six rows of common bond, then one row of headers. Hipped and gabled sections intersect to form a compact, roughly 50×60 foot rectangular shape. An attractive but simple hipped roof tower with corbels rises from the point of intersection, and the Main entrance is below it.
— National Register of Historic Places