This three-story Classical Revival courthouse was built following a contentious election in 1912. After voters turned down a proposition to build a new courthouse, county officials hired Falls City Construction Company to “remodel” the 1883 courthouse. Remodeling meant demolishing it to the foundations and building a new structure. Builder L. B. Westerman, under contract with the construction company, used a reinforced concrete frame and exterior bearing walls of rock-faced limestone. Tall concrete columns with Doric capitals form deep porticos on all four sides, and massive concrete lintels cap the windows. The original hemispherical metal dome was removed in 1934.
The courthouse is located on a courthouse square, but it also, in the Spanish tradition, faces an open public square with civic buildings around it. On the south side of the courthouse square at 101 W. Gallagher, the Old Pecos County Jail (1884, 1912, 1913), a substantial limestone building with a castle-like profile, is now a museum.