Chapter 18.12 RESIDENTIAL ZONE R-6 This chapter is included in your selections. Sections: 18.12.010 Uses permitted outright. 18.12.020 Conditional uses permitted. 18.12.030 Signs. 18.12.040 Lot size. 18.12.050 Yards. 18.12.060 Height of buildings. 18.12.070 Lot coverage.