For the latest information on Red Tide affecting Collier County  Collier County Government offices will be closed Mon., Jan. 20 in observance of Rev. Dr. Martin Luther King Day.

Analysis of Substantial Improvement or Repair of Substantial Damage

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How To Determine Substantial Improvement According to FEMA's 50% Rule

What is Substantial Improvement and FEMA's 50% Rule?
Forms and Templates to Determine Substantial Improvement and Substantial Damage
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Floodplain Management
Elevation Certificate




Main Campus:  2800 North Horseshoe Drive, Naples, FL 34104

Phone: (239) 252-2400


Updated 07/11/2019