BUILDING IN A FLOODZONE
When you are building a brand new home it is important to make sure you are fully prepared for and informed about the additional safeguards required to protect your family and your property from devastating flood loss. We cannot prevent a flood, but we can be proactive and reduce the amount of damage flooding causes by retrofitting existing buildings, and requiring that new buildings meet the City standards, and FEMA guidelines.
Requirements for new construction and substantial improvements in an SFHA (Zone A and V):
- Finished floor must be elevated to at or above base flood elevation plus one foot (Example: The base flood elevation as shown on the Flood Insurance Rate Map is 8’ which would make the development requirement at or above 9’);
- Must be designed (or modified) and adequately anchored to prevent flotation, collapse, or
- Lateral movement of the structure resulting from hydrodynamic and hydrostatic loads;
- Must be constructed by methods and practices that minimize flood damage;
- Must be constructed with materials resistant to flood damage;
- Must be constructed with electrical, heating, ventilation, plumbing, and air-conditioning
- Equipment and other service facilities that are designed and located so as to prevent water
- From entering or accumulating within the components during conditions of flooding;
- Water supply systems must be designed to minimize or eliminate infiltration of flood waters into the system.
Additional Zone Specific Requirements
- Fill is allowed.
- Garage can be located below BFE if properly vented
- Fill is prohibited
- Structures must be elevated using piers, pilings or columns
- Areas below BFE must be used solely for parking, access or storage and must be constructed with breakaway walls
A non-conversion agreement* must be submitted after building final and before Certificate of Occupancy is issued for new construction, including additions, permits with or without a proposed enclosure.
*A non-conversion agreement for new construction, including additions, with or without an enclosure below base flood elevation is an agreement that the enclosed space will not be converted to a habitable living space. The area must remain solely used for parking, access or storage.
Non-Conversion Agreement »
Development is prohibited within a regulatory floodway unless you can show “no-rise” and “no adverse impact.”
The entire Flood Hazard Prevention Code, which contains requirements for specific standards, subdivision proposals, floodways and coastal high hazard areas, can be found in the City's Municode, Chapter 14, Article V.