Permits & Regulations
The FEMA 50% rule explained
How the FEMA 50% rule works for Florida renovations and storm repairs in flood zones, how market value is set, and how to plan around it.
Permits & Regulations
Which beachfront remodels, additions, pools, decks and seawalls need a Florida DEP CCCL permit, how to find the line and how it fits with local permits.
If your home is on an Atlantic beach in Flagler, Volusia, Brevard, Indian River or St. Lucie County, part or all of your lot may be seaward of the Coastal Construction Control Line. Where that line falls decides whether the Florida Department of Environmental Protection (DEP) reviews your project, on top of your city or county building department.
Section 161.053 of the Florida Statutes directs DEP to set coastal construction control lines county by county along the state's sandy beaches facing the Atlantic Ocean, the Gulf and the Straits of Florida. Each line marks the part of the beach and dune system that can change dramatically in a 100-year storm, based on storm surge, waves and other predictable weather conditions. DEP says CCCLs are established in 25 coastal counties, and a county's line can be re-established when erosion or major storms change the shoreline.
DEP's homeowner's guide stresses that the CCCL is a line of jurisdiction, not a setback. It marks the landward limit of DEP's authority. Building seaward of it isn't banned, but it needs a DEP permit or a confirmed exemption, and it must meet special siting and design rules. The permit rules are in chapter 62B-33 of the Florida Administrative Code, with general permits in chapter 62B-34.
Chapter 62B-26 of the Florida Administrative Code describes each county's line. CCCLs have been established along the Atlantic coast of Flagler, Volusia, Brevard, Indian River and St. Lucie counties. Volusia County's line, for example, runs from the Flagler County line south to Ponce de Leon Inlet and continues to the northern boundary of Kennedy Space Center. Indian River County's runs from Sebastian Inlet to the St. Lucie County line.
Only the ocean side is affected. Homes on the Indian River Lagoon, the Halifax River or the Intracoastal Waterway aren't subject to the CCCL, though many are in flood zones.
Seaward of the line, DEP regulates construction, excavation and other work that could affect the beach and dunes. It reviews applications for their effect on the beach-dune system, neighboring properties, native salt-tolerant vegetation and marine turtles.
| Project seaward of the CCCL | DEP review |
|---|---|
| Interior remodel, repairs within the existing foundation | Generally exempt if the foundation isn't changed |
| Room addition outside the existing footprint | Needs a permit |
| Enclosure or addition below the first floor or lowest deck | Not covered by the exemption |
| Swimming pool | Needs a permit; pools are reviewed as non-habitable major structures |
| Deck or dune walkover | Needs a permit; may qualify for a general permit at a single-family home |
| Seawall, revetment or other armoring | Always needs a permit |
| Scraping, chipping, guniting or painting an existing seawall | May be exempt minor maintenance |
Exempt work still has to avoid disturbing dunes, sea turtle nests, native vegetation, public beach access and neighboring properties. If you're unsure, ask DEP for an exemption determination in writing. Some building departments won't issue a building permit for work seaward of the line until you show either a DEP permit or an exemption determination.
The 30-year erosion projection is DEP's estimate of where the shoreline will be in 30 years, based on the beach's average yearly rate of change. On eroding beaches it can rule out additions toward the ocean.
A DEP permit doesn't replace your local building permit, and the local permit doesn't replace DEP's. Your building department enforces Section 3109 of the Florida Building Code, which sets structural requirements for buildings and pools seaward of the CCCL. DEP supports it by publishing the 100-year storm elevations the code relies on.
Under the 2023 (8th edition) code, according to Florida Division of Emergency Management guidance, the lowest floor's structure must sit at or above the highest of: the flood elevation for coastal high-hazard (V) and Coastal A zones, any higher local requirement, and DEP's 100-year storm elevation. Walls below must be breakaway walls, and for homes the more restrictive of the CCCL and flood rules applies. The 9th edition code takes effect December 31, 2026, so ask which edition applies to your permit.
Many beachfront homes are also in FEMA flood zones. A large remodel, addition or storm repair can trigger the 50% rule, which may require elevating the whole house. Read the FEMA 50% rule in Florida before you design. For beachfront decks, see the deck permit guide.
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Permanent armoring (seawalls, revetments and similar structures) always needs a DEP permit. Under section 161.085, DEP may permit armoring when a private structure or public infrastructure is vulnerable to damage from frequent coastal storms. It may also permit a wall of up to 250 feet that fills a gap between existing armoring on both ends, along the same line.
Temporary emergency measures are different. After a storm erodes the beach, a local government can authorize temporary protection for a home, such as small sandbags, temporary wooden retaining walls or sheet-pile walls without caps or tiebacks. Within 60 days of installation, the temporary structure must be removed or a DEP permit application filed for a permanent one.
Storm repairs. DEP's post-storm handout says rebuilding a substantially damaged major structure, or permanently repairing its foundation, needs an emergency CCCL permit. Lesser repairs that restore pre-storm conditions may be allowed under DEP emergency orders issued after a declared emergency. Be careful with anyone who pushes you to rebuild before you know your permit status; see storm repair scams in Florida.
DEP's emergency orders describe substantial erosion and damage to the beach in Volusia County and part of Flagler County after Hurricanes Ian and Nicole in 2022, with many homes left uninhabitable or in danger of collapse. DEP's emergency final order for Volusia (OGC No. 22-2740, first issued October 28, 2022) was amended several times and extended to part of Flagler County. The orders relaxed some armoring criteria, for example allowing a seawall where the home had been destroyed or substantially damaged, but did not remove the need for a DEP permit. The latest version we found is a fifth amended order from 2025. We couldn't confirm whether any of these orders still applies, so ask DEP.
The state's Hurricane Restoration Reimbursement Grant Program, created in 2022 (SB 4-A), reimbursed eligible coastal homeowners in Volusia and other affected counties for half the cost of sand placement and coastal armoring after Ian and Nicole. DEP says the program ended June 30, 2026, and remaining funds reverted on July 1, 2026.
For local building departments, see building permits in Volusia County, Brevard County and Indian River County.
No. DEP describes it as a line of jurisdiction that marks the landward limit of its authority. Seaward of the line, construction needs a DEP permit or exemption and must meet special siting and design rules, but homes, additions, pools and decks can be approved.
Usually not. Modification, maintenance and repair of an existing structure within the limits of its existing foundation, without changing the foundation, is generally exempt from DEP permitting. You still need the local building permit, and your building department may ask for proof of the exemption.
Look up your property in DEP's Map Direct viewer, where the line is drawn in red, and check your survey and closing papers. Florida law requires sellers of property partly or wholly seaward of the line to give buyers a coastal properties disclosure. If the line is close or crosses your lot, ask DEP.
Only with a DEP permit. State law lets DEP permit coastal armoring when a home or public infrastructure is vulnerable to damage from frequent coastal storms, and in some gaps between existing walls. After a storm, a local government can authorize temporary measures, which must be removed, or a DEP permit application filed, within 60 days.
No. CCCLs are set only along sandy beaches facing the Atlantic Ocean, the Gulf and the Straits of Florida. Work on the lagoon, the Halifax River or the Intracoastal Waterway goes through other state and local permits.
We summarize official information in our own words and link to the source. Requirements can change, so confirm details with the source before relying on them. Our editorial standards
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