17.72.040: CALCULATING PARKING REQUIREMENTS:
   A.   Whenever parking requirements are based on square footages, calculations shall be based on net square footage of the building or use. Net square footage excludes restrooms, stairways, elevator shafts, mechanical and electrical rooms, janitorial closets, lunchrooms and common areas used only for major pedestrian movement, such as enclosed malls and public lobby areas. When public lobby areas contain uses that generate a demand for additional parking, they shall be included in net square footage calculations for determining parking requirements.
   B.   When a structure or parcel contains multiple uses, more than one parking standard may apply.
   C.   Available on street parking spaces cannot be used to meet the requirements set forth herein. No development plans shall be based on the assumption that excess vehicles can be parked on public streets.
   D.   When parking regulations are based on the number of employees, parking calculations shall use the largest number of employees who work at any one shift. Where shift changes may cause substantial overcrowding of parking facilities, the planning commission may require additional spaces.
   E.   When parking use intensities vary during the course of the day because of hours of operation or peak time usage, the planning commission may implement shared parking usage based upon reasonable use standards on a case by case basis. (Ord. 07-30 § 2)