Land Use & Zoning

A Florida coastal property owner's beachfront is eroding due to storms. The beach has receded 20 feet onto what was previously the owner's upland property. Under Florida's 'ambulatory boundary' doctrine:

AThe owner's property line remains fixed at its original location
BThe property line follows the natural movement of the mean high-water line — as the water advances, the owner loses upland area✓ Correct
CThe state must restore the beach to its original location
DThe owner can install a seawall to stop the erosion without permits

Explanation

Under Florida's ambulatory boundary doctrine, the boundary between private upland and state-owned submerged land (the mean high-water line) is ambulatory — it moves with the natural shifts in the shoreline. If the beach erodes through avulsion (sudden loss) vs. erosion (gradual), different rules may apply. For gradual erosion, the property line moves with the water, and the owner loses land. Accretion (new land building up) benefits the owner.

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