Tax Code §23.93

(a) A person is entitled to have airport property he owns appraised under this subchapter if, on January 1: (1) the property is restricted as provided by this subchapter; (2) the property has been devoted exclusively to use as public access airport property for the preceding year; and (3) he is using and intends to use the property exclusively as public access airport property in the current year. (b) The chief appraiser may not consider any factor other than one relating to the value of the airport property as restricted. Sales of comparable airport property not restricted as provided by this subchapter may not be used to determine the value of restricted property. (c) Improvements to the property that qualify as public access airport property are appraised as provided by this subchapter, but other improvements and the mineral estate are appraised separately at market value. (d) If airport property is appraised under this subchapter for a year, the chief appraiser shall determine at the end of that year whether the property was used exclusively as public access airport property. If the airport property was not used exclusively as public access airport property, the assessor for each taxing unit shall impose an additional tax equal to the difference in the amount of tax imposed and the amount that would have been imposed for that year if the property had not been restricted to use as public access airport property. The assessor shall include the amount of additional tax plus interest on the next bill for taxes on the land. (e) The comptroller shall promulgate rules specifying the methods to apply and the procedures to use in appraising property under this subchapter.