Permitting is a general term used by the District to refer to any written authorization made by the District. Floodplain Use Permits (FPUPs) are the most common type of permit the District issues. Other permits may include review and approval of Development Plans, Subdivision Plats, Improvement Plans, and the review and approval of Development Services Department Activity Permits.
In general, Floodplain Management personnel process permits for private, single-lot development, whereas Development Review personnel process permits for commercial development and multi-lot subdivisions.
Floodplain Management (Single-lot) Permitting
Floodplain Management staff process permits for single-lot improvements, including such activities as: site-built structures, manufactured homes, accessory structures, walls, fences, septic systems, grading, or any other activity within a regulatory floodplain, erosion hazard area or regulated riparian habitat. Most development activities also require a Development Services Department (DSD) Activity Permit, which should be initiated before applying for an FPUP. An FPUP Application Guide has been created to assist customers in providing the District with all of the information necessary to properly process a permit.
Development (Multi-lot and Commercial) Permitting
Development Review staff process permits for multi-lot subdivision and commercial development subdivision plats, development plans and improvement plans for impacts to floodplains or regulated riparian habitat. In most cases, Development Review staff receive plans for review through the Development Services Department. The District has created guidance documents and a Subdivision and Development Review page to assist the public in providing the District with all of the information necessary to facilitate the review of these plans.
Riparian Habitat Protection
Riparian Habitat is the community of plants found along watercourses or washes. Riparian habitat can range from a narrow band of grasses and shrubs along an ephemeral desert wash to a closed canopy of large mature trees along a perennial stream. Riparian vegetation slows flood flows, provides erosion protection for river banks, improves water quality, and provides numerous economic benefits, recreational opportunities, and aesthetic values. Protecting this resource is an important aspect of sound floodplain management. To learn more about the regulations protecting riparian habitat and the District's role in protecting riparian habitat, please visit the Riparian Habitat Protection page.