Real California cost ranges, not a national guess.
Renovating in California costs meaningfully more than most of the country. California's renovation index is 138% of the national average, with a mid-range kitchen near ~$34,500, a bathroom near ~$16,560, and a full gut remodel near ~$152/sqft.
If you're planning a renovation in California, treat the 138% figure as a multiplier on national averages, then adjust for whether you're closer to Los Angeles or San Francisco.
In California, budget ~$34,500 for a mid-range kitchen, ~$16,560 for a bathroom, and ~$152/sqft for a whole-home remodel. Those numbers move up or down depending on whether you're closer to Los Angeles or San Francisco. The gap between a Los Angeles bid and a San Francisco bid can be significant, even for identical scope.
For California, the 138% index tracks labor and materials against the national average. The California kitchen and bathroom figures reflect a mid-range remodel; the ~$152/sqft rate covers a complete gut renovation.