The planning director, upon receipt of an application for adjustment of the landscaping requirements provided herein, and executed and sworn to by the owner of the property concerned or his authorized agent, shall have the authority and duty to consider and act upon such application. The applicant shall clearly and in detail state what adjustment of requirements are being requested and the reasons that such adjustments are warranted. The application shall be accompanied by supplemental data, such as sketches, surveys, and statistical information, as is deemed necessary to support the adjustment. The planning director may approve, modify, or deny the requested adjustment, but shall approve or modify only if he or she determines that any adjustment would not be contrary to the public interest, would be in keeping with and preserve the intent of this chapter, and literal enforcement of the above standards would be impracticable and would result in an unreasonable and unnecessary hardship. The planning director shall act upon any such application within 30 calendar days of its official submission by the applicant. If the planning director does not take any official action within the aforesaid 30-day period, or if there is no mutually agreed upon extension of the time beyond the 30 days, in writing, between the applicant and the planning director, then the application shall be considered to be approved. (Ord. 1110 § 3, 2002; Ord. 1027, 1998; Ord. 929 Ch. 10(K)(4), 1995. Formerly 17.145.150).