Tex. Loc. Gov't Code § 372.020
The governing body of the municipality or county may make a reassessment or new assessment of a parcel of land if:
Acts 1987, 70th Leg., ch. 149, Sec. 1, eff. Sept. 1, 1987.
Amended by Acts 2001, 77th Leg., ch. 1341, Sec. 18, eff. June 16, 2001.