An area plan covers a defined geographic area of the county and provides planning, design and implementation strategies consistent with the SGMP. Area plans provide basic information on the natural features, resources, and physical constraints that affect development of the planning area. They also specify detailed land-use designation used to review specific development proposals and to plan services and facilities. An area plan may consist of goals, objectives, policies, and implementing strategies for capital improvement and service programs, zoning, subdivision regulation, official map, the level of service required for adequate public facilities and services; physical and environmental conditions; environmentally sensitive areas; cultural, historic and archeological resources, land-use characteristics of the area; and maps, diagrams, and other appropriate materials showing existing and future conditions. An area plan provides specific planning, design, and implementation, for the defined geographic area of the County to guide development applications, provision of governmental facilities and services, and to implement the official map, capital improvement and services programs, public and private utility and infrastructure plans, annexations, and creation of assessment and public improvement districts.