For the Bay Area, two immediately come to mind:
In Emeryville, est. 2019 population 12,068, there's Pacific Park Plaza, a residential tower of 318 ft. and 30 stories that definitely sticks out like a sore thumb despite a smattering of mid-rises on the nearby bay shore:
source: wikipedia
source: wikipedia
And in Campbell, est. 2019 population 41,793, there's the rather curiously-scaled Pruneyard towers, the tallest of which is 256 ft. tall with 18 stories. The tallest tower in Silicon Valley until 1996, it really stands out in such a suburban environment:
source: wikipedia
source