Tex. Loc. Gov't Code § 233.036

If a structure is erected, constructed, or reconstructed in violation of a building or set-back line established under this subchapter, the commissioners court, the district or county attorney, or an owner of real property in the county may institute an injunction, mandamus, abatement, or other appropriate action to prevent, abate, remove, or enjoin the unlawful erection, construction, or reconstruction.