The Deuel County Courthouse, 718 3rd St. in Chappell, was built in 1915, after voters approved a $20,000 bond, to plans by Denver architect John J. Huddart; contractor M. J. Kenney of Denver built it for $21,505. The Classical Revival "County Citadel" courthouse was listed on the National Register of Historic Places in 1990. Offices are open Monday–Friday, 8 a.m.–4 p.m.