Shiina had a minor yab on-stream late March revealing a Lush cosmetics store location she set as default or something. IIRC, it wasn't in SoCal; it was in San Jose.
I don't recall when, but I'm certain she's mentioned living somewhere well into the suburbs, in a gated community. That would probably place her further South than the Gay Area, since I'm sure neither of the sisters combined are able to afford rent to live that close to the city. Still, likely a 6+ hour drive even with the best traffic conditions.