The 50% Rule is a regulation of the National Flood Insurance Program (NFIP) that prohibits improvements to a structure exceeding 50% of its market value unless the entire structure is brought into full compliance with current flood regulations.
People Also Ask
Miami Beach has been the poster city for sea-level rise for some time, and for good reason. By 2100, 98% of buildings in the city could be below sea level. A mild hurricane would likely flood the whole city.