(A) Any building requiring yard space shall be located at such an elevation that a sloping grade shall be maintained to cause the flow of water to run away from the walls of the structures thereon. The balance of yard spaces shall be graded and adequate drainage provided where necessary to deflect proper drainage of surface waters from the premises.
(B) When a new building is constructed on a vacant lot between 2 existing buildings or adjacent to an existing building, the existing established grade shall be used in determining the grade around the new building, and the yard around the new building shall be graded in such a manner as to meet existing grades.
(C) Final grade shall be approved by the Building Official only after a certificate of grading and location of building within the city has been duly completed and certified by a registered engineer or land surveyor.