California Senate Bill 9 (SB 9) aims to increase housing density in single-family residential areas. However, seismic safety remains a paramount concern in determining eligibility.
Definition and Explanation
An earthquake fault zone, also known as an Alquist-Priolo Earthquake Fault Zone, is an area around an active fault where there is a higher potential for surface fault rupture. These zones are designated by the California Geological Survey under the Alquist-Priolo Earthquake Fault Zoning Act.
How It Applies to SB 9
Properties located within an earthquake fault zone are generally ineligible for SB 9 provisions, unless they meet specific seismic safety requirements. This restriction aims to prevent increased housing density in areas with heightened risk of surface fault rupture during an earthquake.
Determining Eligibility
- Check the California Earthquake Hazards Zone Application (EQ Zapp), an online mapping tool that shows official earthquake fault zones.
- Consult local planning departments or geological agencies for more detailed fault zone information.
- If the property is in a designated fault zone, investigate whether any exceptions apply or if seismic safety measures have been implemented.
- Consider obtaining a professional geological assessment if there's uncertainty about the property's seismic status.
Impact on Property Owners
Property owners outside of designated earthquake fault zones have more flexibility to utilize SB 9. Those within fault zones face restrictions unless they can demonstrate compliance with stringent seismic safety measures.
