I'm a huge fan
There is a FLW house on the grounds of Stanford Univ in Palo Alto. I use to often ride my bike there and admire its exterior, and I had seen coffee-table book pix of the interior. It was occupied by the University President, (one of the perks of academia, I guess!). I never got a chance to look inside. The place was stunning.
I also understand the City Hall of Sausalito (Or maybe the Marin County government house?) was also a FLW building, a fact I did not know when I lived in N. Cal. or I would have checked it out.