Tex. Loc. Gov't Code § 216.006
The compensable costs for a sign that is required to be relocated include the expenses of dismantling the sign, transporting it to another site, and reerecting it. The board shall determine the compensable costs according to the standards applicable in a proceeding under Chapter 21, Property Code. In addition, the municipality shall issue to the owner of the sign an appropriate permit or other authority to operate a substitute sign of the same type at an alternative site of substantially equivalent value. Whether an alternative site is of substantially equivalent value is determined by standards generally accepted in the outdoor advertising industry, including visibility, traffic count, and demographic factors. The municipality shall compensate the owner for any increased operating costs, including increased rent, at the new location. The owner is responsible for designating an alternative site where the erection of the sign would be in compliance with the sign ordinance.
Tex. Loc. Gov't. Code § 216.006