The regulations prescribed in Sections 12.08.020 and 12.08.030 shall not apply to any building or dwelling, the construction of which began prior to the effective date of the ordinance codified in this chapter. This chapter shall have no application to buildings and structures in existence on the effective date of the ordinance codified in this chapter. (Ord. 162, 1979; Ord. 109 §§ 6, 10, 1967)