Chapter 15.54 UNIFORM SYSTEM OF NUMBERING HOUSES AND BUILDINGS This chapter is included in your selections. Sections: 15.54.010 Purpose. 15.54.020 Baseline. 15.54.030 Diagonal streets. 15.54.040 Numbers begin at baseline. 15.54.050 Numbering. 15.54.060 Plat book on file. 15.54.070 Administration.