Chapter 23.324 NONCONFORMING USES, STRUCTURES, AND BUILDINGS This chapter is included in your selections. Sections: 23.324.010 Chapter Purpose. 23.324.020 General. 23.324.030 Nonconforming Lots. 23.324.040 Nonconforming Uses. 23.324.050 Nonconforming Structures and Buildings. 23.324.060 Exemptions.