Any proposed development in the Special Flood Hazard Area requires an approved Floodplain Development Permit. Clay County floodplain regulations define development as any man-made change to improved or unimproved real estate, including but not limited to, buildings or other structures, tanks, temporary structures, temporary or permanent storage of equipment or materials, mining, dredging, filling, grading, paving, excavations, drilling operations or any other land disturbing operations. For more information regarding floodplain development as well to obtain a copy of a Floodplain Development Permit, please visit our
Development within a Flood Plain webpage.
Residential finished floor elevations, including basements and machinery and/or equipment which are in numbered A zones must have their lowest floors elevated to at least one foot above the base flood elevation or the design flood elevation, whichever is higher. Residential finished floor elevations, including basements located in un-numbered A zones must be elevated to at least three feet above the highest adjacent grade (HAG). All manufactured homes placed in the Special Flood Hazard Area shall be elevated such that the bottom of the lowest horizontal member is one foot above the Base Flood Elevation in numbered A zones or 3 feet above the HAG in an un-numbered A zone.
These elevations must be substantiated through the submission of Elevation Certificates completed at appropriate stages of construction in order to substantiate elevation compliance.
No development, including but not limited to site improvements and land disturbing activity involving fill or regrading, shall be authorized in the regulatory floodway unless a Floodway Encroachment Analysis (No-Rise Study) is submitted and approved by the county. This Floodway Encroachment Analysis must be signed and sealed by a registered Professional Engineer and must demonstrate that the proposed development or land disturbing activity will not result in any increase in the base flood elevation. No floodplain permit will be granted in the absence of an approved Floodway Encroachment Analysis. Where the Floodplain Administrator has determined that the development activity qualifies as a minor project or is demonstrated to be located within a floodway Conveyance Shadow, the submittal of an analysis may not be required.
Any proposed development located in a designated wetland should be vetted through the Florida Department of Environmental Protection, for review and any necessary permitting.