The provisions set out in Section 10.60.020 shall not apply to public utility poles; trees trimmed (to the trunk) so that only the trunk obstructs the view; saplings or plant species of open growth habits and not planted in the form of a hedge, which are so planted and trimmed as to leave at all seasons a clear and unobstructed cross-view; and permanent buildings. (Ord. 944 § 1 (part), 1983: prior code § 3216(b))