View the following list that explains what will and will not be considered as an exemption:
- If the cost of the addition will be less than 50% of value of the existing building, then the addition is exempt.
- If the cost of the addition represents 50% or more of the value of the existing building, then the addition isn’t exempt and elevation is required.
- If the existing building will be renovated as well, then the total cost of both the renovations and new construction are included in the 50% threshold calculations.
- If this combined value is 50% or more, then the addition must be elevated, but the original building isn’t required to be elevated. The 50% calculations are cumulative for a five year period.
- For example, if the existing house was remodeled three years ago to 30% of it’s value, and now the new addition would represent 25% of the existing building’s value prior to the addition, then the addition must be elevated (30% plus 25% equals 55%).
- The same rule applies whether the buildings are connected or not. Unless a variance has been granted allowing an additional living unit on the lot.
- When a historic contributing structure is moved or the foundation replaced, elevation of the building is required.
- For more information on the 50% rule, view Substantial Improvement.