Even a good part of SF proper (maybe 1/3 or so) feels pretty suburban to me. Two-story single-family homes, each with a private garage as the most prominent feature of the ground floor frontage. Granted, they're more "old-style" suburban homes. On smaller lots and with smaller yards, on a grid street plan, more like what '40s-'60s style suburbs looked like. Not the style popular since the '80s with big houses on huge lots on a cul-de-sac. But not exactly urban, either.