(A) Where an earth-sheltered building substantially alters the natural watershed of the lot, computations for yard area shall be based on measurements from the surrounding cover of earth. In cases where the earth-sheltered building has been made part of the natural terrain, computations for yard area shall be made from the exterior surface of the building.
(B) All applications for zoning permits for earth-sheltered buildings presented to the Planning Commission shall be accompanied by a suitable drainage plan.
(2001 Code, § 11.11) Penalty, see § 10.99