HomeBusiness and professionalsPlanning Development Services Coordinating and administering services to support development in Peel. Development services overview About Development Services and the types of applications our regional planners review. Development application types and requirements Details about applications and requirements for site plans, zoning by-law amendments, and more. Development applications resources Help for facilitating and implementing standards and requirements for development applications. Related information Design standards specification and procedures Environmental assessments Peel Region Official Plan