The purpose of the C-O zone is to provide appropriate locations where professional and administrative office zones may be established, maintained and protected. The regulations of this district are designed to promote a quiet and dignified environment for business administration, professional and government activities, free from the congestion and traffic of the usual retail business district. To this end, the regulations permit office buildings and medical and financial facilities; appropriate commercial facilities primarily for the service of the occupants of the district are permitted subject to special controls. The intensity of development of such a district is intended to reflect its environmental setting with building height and coverage generally similar to and harmonious with those of neighboring districts. (Ord. 3153 § 2 (Exh. A), 2010; Ord. 1212 § 1, 1969; prior code § 33.506(A)).