(A) Front yard requirements are as follows. Each lot, building site or building shall have a front yard along the street of not less than 20 feet; provided, however, that if vehicular access to the lot, building site or building, including parking spaces, carports or garages therefor, is across a front yard, the yard shall be not less than 25 feet.
(B) Side yard and rear yard requirements are as follows:
(1) Corner lots siding on a local street shall have a side yard on the street side of not less than 15 feet in depth;
(2) Reversed corner lots shall have a side yard on the street side not less than 15 feet in depth. Any additions or enlargements to nonconforming main buildings and structures on reversed corner lots may extend as far as the setback of such buildings or structures, but in no instance shall they extend less than ten feet from the property line;
(3) Each interior lot, building site or building shall have side yards not less than five feet in depth for a one-story building and not less than seven and one-half feet in depth for a building two or more stories in height;
(4) Each lot, building site or building shall have a rear yard not less than ten feet in depth.
(C) Interior yard and court requirements are as follows:
(1) Where there is more than one main building on a lot or building site or where a building bounds a court, each building or wing thereof shall have the following yards with the following minimum depths:
(a) Front, 15 feet;
(b) Side, five feet;
(c) Rear, seven feet.
(d) For buildings exceeding three stories or 45 feet in height, for which a variance has been granted, the depth of the required yards shall be increased by two and one-half feet for each additional story or each additional 15 feet in building height;
(2) Where a driveway is included in the space between buildings, the total distance between the buildings shall be increased by ten feet to accommodate the driveway;
(3) The distance between buildings and any wings thereof shall not be less than the sum of the yard depth requirements for each building or wing as set forth in this section. Buildings or wings thereof shall in no instance be less than ten feet apart;
(4) The building front of a multiple dwelling shall be determined by the location of the main entrance to the dwelling units therein. Where a secondary entry is provided in the side or rear of any such dwelling, the yard depth requirement for the building shall be increased two and one-half feet to provide for reasonable secondary access thereto.
(`78 Code, § 17.26.100.)