Do you mean SFR (single family residences?) I don't know what an sfo community is, but in general, I have found that Pleasanton is mostly allowing high-end builders to build, (over $1mil and of late, mostly over $1.5mil). So, yes, Pleasanton is more expensive than San Ramon. You don't need me to tell you that, though. Go to the search page, put in both San Ramon and Pleasanton, and your price range, and see what your options are. I think that Pleasanton is mostly older homes. But beware of Windemere, where the taxes are about 40% to 50% higher than surrounding communities, because that takes a huge bite out of your monthly out-go, and you must consider that when looking at the price of a home there. To check school ratings, go to greatschools.net, and you can compare schools across district lines - compare San Ramon Valley Unified School District with Pleasanton or Dublin. Good Luck!