A project deemed by the city to be a FEMA "substantial improvement" must bring the entire structure into compliance with current FEMA standards and the city's Flood Damage Prevention Ordinance. If your project is a FEMA substantial improvement, then an elevation certificate shall be submitted along with a planning or building permit application.
The links below explain city policy on how we decide whether a building project is a substantial improvement under FEMA regulations. Also provided is a template worksheet to assist you in calculating whether your project meets this definition. This worksheet provides only a preliminary determination. The Engineering Division will make the final decision after reviewing plans submitted with the building permit application.
If the project is a substantial improvement, then it will need to bring the whole structure into compliance with current FEMA standards and the City's Flood Damage Prevention Ordinance (Municipal Code §§ 12.42.51 and 12.42.52).