Tex. Local Government Code § 291.001: PROVIDING AND MAINTAINING COUNTY BUILDINGS.

The commissioners court of a county shall:

(1) provide, as soon as practicable after a county seat is established or moved, a courthouse and offices for county officers at the county seat;

(2) provide other necessary public buildings; and

(3) maintain the courthouse, offices, and other public buildings.

Acts 1987, 70th Leg., ch. 149, Sec. 1, eff. Sept. 1, 1987.