
Florida 50% Rule Explained: What Triggers a Full Rebuild
Florida’s 50% Rule requires that if repair or renovation costs exceed 50% of a structure’s market value (excluding land), the entire home must be brought up to current flood and building code standards, including elevation. What You Need to Know Before You Build, Fix, or Remodel Florida’s 50% Rule applies to any major renovation in a flood zone. If your project costs exceed 50% of your home’s value, you may be required to elevate or fully rebuild. Here’s what it means at a glance: The rule applies in FEMA-designated flood zones (Zones A, AE, V). It’s triggered when work exceeds 50% of the building’s market value (not including land). Once triggered, full compliance with today’s Florida Building Code is mandatory. Elevation to Base Flood Elevation (BFE) is often required. Voluntary renovations count Costs are cumulative over 12 months, even across separate permits. Local building departments make the final call. If your home sits below current elevation standards, or you’re planning significant work, knowing this rule upfront could save you from unexpected costs, delays, or even demolition. And if you want to learn how to work around, plan smart, and future-proof your investment, you’ll want to keep reading. The 50% Rule,







