Chapter 21.20 LOTS AND BLOCKS This chapter is included in your selections. Sections: 21.20.010 Block length. 21.20.020 Block width. 21.20.030 Very large lots and blocks. 21.20.040 Minimum lot dimensions. 21.20.050 Lot requirements. 21.20.060 Lots without public street frontage. 21.20.070 Lot size averaging.