28-8471. Variance A. A person who wants to erect or increase the height of a structure, permit the growth of a tree or otherwise use the person's property in violation of an airport zoning regulation adopted under this article may apply to the board of adjustment for a variance from the airport zoning regulation in question. B. A variance shall be allowed if a literal application or enforcement of the regulations would result in practical difficulty or unnecessary hardship and the relief granted would not be contrary to the public interest, would do substantial justice and would be in accordance with the spirit of the regulation and this article. C. A variance may be allowed subject to any reasonable conditions the board of adjustment deems necessary to fulfill the purposes of this article.
Arizona Legal Code