Ariz. Rev. Stat. § 42-13402
B. In general, common areas consist of improved or unimproved real property that is intended for the use of owners and residents of a residential subdivision or development and invited guests of the owners or residents and include common beautification areas and common areas used as an airport. Areas that do not qualify as common areas shall be valued using standard appraisal techniques. The following are not considered to be common areas:
C. Property must meet all of the following requirements to be considered a common area: