I live in Berkeley and work in SF. To make this work you'll probably want to live near the BART and work somewhere on Market, or if you're OK with a little more transit time, in SoMa.
BART from Downtown Berkeley to Montgomery Street is 20 minutes in ideal conditions, but around 30 more typically due to waiting or a transfer at MacArthur. Expect to add to that 5-10 minutes for somewhere on Market and 10-15 minutes for somewhere in SoMa
BART from Downtown Berkeley to Montgomery Street is 20 minutes in ideal conditions, but around 30 more typically due to waiting or a transfer at MacArthur. Expect to add to that 5-10 minutes for somewhere on Market and 10-15 minutes for somewhere in SoMa