Chapter 25.145 PLANNED DENSITY DEVELOPMENT This chapter is included in your selections. Sections: 25.145.010 Purpose. 25.145.020 Minimum site development area. 25.145.030 Density regulation. 25.145.040 Ownership. 25.145.050 Streets. 25.145.060 Setback requirement. 25.145.070 Building heights. 25.145.080 Procedure.