For Pleasanton and Windemere, a 3bd/2ba SFH (on average) will be anywhere from $2700 to $3,000 range depending upon sq ft, locations, etc. I would use $1.30 to $1.50 per livable sq ft as a gauge.
My current rental listing http://www.trulia.com/rental/3128670786-5466-Sherwood-Way-San-Ramon-CA-94582 as a reference.
Johnny Su, Broker
Premier West Realty