12-11-4: CONDITIONS:
   A.   Terms And Conditions: The planning and zoning commission, in approving a variance, may set forth in its decision reasonable terms and conditions which it deems necessary to protect the health, safety and welfare of the community and to assure the intent and purpose of this title. It may also require that such terms and conditions are being or will be complied with.
   B.   Term Of Variance: Every variance from the provisions of this title granted by the planning and zoning commission as authorized by this chapter shall contain a condition thereof, as follows:
The variance hereby allowed is conditioned upon the privileges herein being utilized within one hundred eighty (180) days after the effective date hereof, and should the privileges authorized hereby fail to be executed or utilized or where some form of construction has not actually commenced within such one hundred eighty (180) days, and is not diligently prosecuted to completion, this authority shall become null and void and any privilege or variance granted hereby shall lapse unless such variance has not been utilized within such one hundred eighty (180) day period by reason of delays caused by approval of plans, in which event the planning and zoning commission may, in its discretion and with the consent or upon the request of the applicant, for any cause, grant a reasonable extension of time to the one hundred eighty (180) day time limit noted above.
   (1987 Code § 17.68.040)