The old Oakland Floral Depot at 1900 Telegraph Avenue, designed by Albert Elvers and dating from 1931, is now a restaurant called Flora.
It is a glorious building covered with cobalt blue tiles and silver Art Deco decorative flourishes.
The corner tower is stunning. It takes quite a few minutes of concentrated effort to absorb all the decoration. I particularly like the band of chevrons about half-way up.
Flora Restaurant & Bar website
Deco by the Bay: Art Deco Architecture in the San Francisco Bay Area ~ Michael F Crowe