Chapter 18.52 PLANNED UNIT DEVELOPMENT This chapter is included in your selections. Sections: 18.52.010 Intent. 18.52.020 Application. 18.52.030 Hearing and notification. 18.52.040 General provisions. 18.52.050 Residential planned unit developments. 18.52.060 Business planned unit developments. 18.52.070 Industrial planned unit developments.