Chapter 18.80 NONCONFORMING LOTS, STRUCTURES AND USES This chapter is included in your selections. Sections: 18.80.010 Intent. 18.80.020 Date of construction. 18.80.030 Nonconforming lots of record. 18.80.040 Nonconforming structures and uses of land. 18.80.050 Conversion of nonconformity.