The County of Chester, Pennsylvania MISSION The mission of the Chester County Planning Commission is to provide future growth and preservation plans to citizens, so that they can enjoy a Chester County that is historic, green, mobile and prosperous. Planning Commission The Chester County Planning Commission is a nine-member advisory board appointed by the County Commissioners. The members represent diverse backgrounds, volunteering to serve four-year terms. The officers are elected annually. All are dedicated to promoting coordinated growth and preservation planning for all of Chester County. Initially the work of the Planning Commission involved inventorying and mapping the County’s features and resources. Over time, the Planning Commission has evolved into a modern, professionally staffed, planning organization that uses specialized knowledge and training, along with the latest techniques and technology, to plan for the future of Chester County. The Planning Commission’s activities are enabled, and in some matters mandated, by the Pennsylvania Municipalities Planning Code.