The Johnston-Grimes Metropolitan Fire Department, in cooperation with the City of Johnston Building, Economic Development, and Planning & Zoning Departments, City of Grimes Building Department, and Polk County Engineering provides plan review services. The focus of the service is to ensure that structures which are proposed to be constructed meet the current fire, building, and planning & zoning regulations, to ensure a safe and enjoyable community experience for those who work, live, and play in our communities.