Chapter 17.18 R-3 TWO-FAMILY RESIDENTIAL ZONE This chapter is included in your selections. Sections: 17.18.010 Permitted uses. 17.18.020 Conditional uses. 17.18.030 Lot size. 17.18.040 Yard requirements. 17.18.050 Building height. 17.18.060 Density requirements. 17.18.070 Signs. Recodified.