Concrete or masonry foundations and footings for all cabanas shall be designed to adequately support the weight imposed on them in accordance with the provisions of applicable chapters of the Uniform Building Code, as adopted by CVMC 15.08.010. Concrete foundations shall be set in undisturbed soil, but in no event shall be less than 12 inches below grade. Footings shall be not less than 12 inches wide. (Prior code § 6.57).