I am building a new home, how much more will it cost initially to build to the California wildfire code?

Research shows that there does not need to be any added cost to meet the code minimum.  These documents provide some examples of meeting some of the provisions found in the CA wildfire code:

1. The Costs of Wildfire in California – An Independent Review of Scientific and Technical Information, California Council on Science and Technology – Link: https://ccst.us/wp-content/uploads/The-Costs-of-Wildfire-in-California-FULL-REPORT.pdf
2. Building a Wildfire-Resistant Home: Codes and Costs (2019; Headwaters Economics) This study finds negligible cost differences between a typical home and a home constructed using wildfire-resistant materials and design features. PDF: https://headwaterseconomics.org/wildfire/homes-risk/building-costs-codes/