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Floodplain Permitting

Permitting Links
• Floodplain Regulations
• Fee Schedule
• Licensing Time Frames

The Flood Control District (District) directly issues Floodplain Use Permits for development in a floodplain, including extraction of sand and gravel or other material. If you are developing land within a designated floodplain, you are required to obtain a Floodplain Use Permit before you build, grade, fill or install any type of wall or fencing, or perform any other man-made change to the property.

The Maricopa County Department of Planning and Development is responsible for processing applications for land use approvals, zoning and land use permits, construction and building permits, and engineering and subdivision permits for unincorporated Maricopa County. Cities and towns in incorporated Maricopa County process their own permits for development within the city/town limits.

Depending on where your property is located, you will follow one of the three permitting scenarios below when obtaining a permit for development in Maricopa County:

  1. If your property is located in unincorporated Maricopa County, visit the One-Stop-Shop (OSS) to start the permitting process. The One-Stop-Shop is a central location where the OSS partner agencies that issue permits are routed a copy of the permit application for review, saving the applicant time by not having to visit each agency separately. Application packet information is found on the Planning and Development Web site. The One-Stop-Shop is located at the Department of Planning & Development, 501 N. 44th Street, Suite 200, Phoenix, Arizona 85008; phone (602) 506-3301.

    Note: Effective July 1, 2011, applicants obtaining a Maricopa County Planning and Zoning Permit and a Floodplain Use Permit for mobile homes, manufactured homes and factory-built buildings must also apply for an installation permit at the Arizona Office of Manufactured Housing after obtaining their Planning and Zoning Permit and Floodplain Use Permit. For more information contact the Arizona Office of Manufactured Housing.

  2. If your property is located in the following communities that handle their own floodplain management, the permit is processed by the respective community and a permit from the Flood Control District for development is not needed: Avondale, Fountain Hills, Gilbert, Glendale, Goodyear, Paradise Valley, Peoria, Phoenix, Scottsdale and Tempe.

  3. If your property is located in the following communities in which the Flood Control District handles the floodplain management, visit the appropriate city/town location to start the permitting process: Buckeye, Carefree, Cave Creek, Chandler, El Mirage, Gila Bend, Guadalupe, Litchfield Park, Mesa, Queen Creek, Surprise, Tolleson, Wickenburg and Youngtown. If your property is in or near a floodplain in these communities you will need to obtain a Floodplain Use Permit from the Flood Control District. The community will give you information for this process.

When required, the Flood Control District reviews each permit application to make sure it complies with the Floodplain Regulations for Maricopa County. For more information, please go to the Floodplain Management section of this Web site.

A Floodplain Use Permit is issued for extraction of sand and gravel or other materials. Additional information can be found in the Floodplain Use Permit for Sand & Gravel Mining section of this Web site. Facilities associated with the extraction of sand and gravel or other materials may be processed through the Fee Schedule for Floodplain Use Permits for Community or Unincorporated County.

A Floodplain Use Permit cannot be obtained without the express written consent and agreement of the owner of the land for which the use permit is sought. Applications for a Floodplain Use Permit, except for extraction of sand and gravel or other material, shall include a signed and notarized Property Owner Authorization Form if the owner wishes to grant an agent, contractor or consultant authority to make decisions on their behalf (403.A.2.). Applications for a Floodplain Use Permit for the extraction of sand and gravel or other materials shall include a signed acknowledgement from the property owner that a Floodplain Use Permit is being sought and, if applicable, designation of an operator authorized to mine the property (403.B.1.c.) must be completed and submitted with the application.

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