For this project I revised and rewrote the commercial zone districts Jefferson County, Missouri, to address the common problems related existing commercial zone districts. The existing districts are either permissive or too limited. The vast majority of commercially zoned property in the County is zoned one district, a district that allows nearly eve commercial use. The Planning Staff has a difficult time keeping large commercial uses away from uses that could be adversely affected. I the commercial zone districts of four counties and used ideas from each to write new commercial zone districts. These proposed districts contain ranges of uses that will encourage new commercial development in areas of the county that do not have the infrastructure to support large-scale co development, but that could support smaller development. This project shows some of the problems counties have with commercial zone dist some solutions to these problems, and some techniques that can be u revise and rewrite a zoning ordinance.