A building may be erected, altered or used, and a lot or premises may be used, for any of the following purposes and no other:
(a) Apartment dwellings in which a maximum of ten dwelling units are located in a building.
(b) Professional office or studio provided that no retail sale is conducted on the premises.
(c) Administrative offices not to exceed 1,500 square feet in size.
(d) Signs, when erected to conform to and be maintained in accordance with Section 1286.02.
(Ord. 404. Passed 3-25-68; Ord. 77-2. Passed 5-16-77.)