Pleasanton Masonic Center 3370 Hopyard Rd, Pleasanton, CA94588 The Pleasanton Masonic Center is the local meeting place for freemasons. It's also a great location to host events…More including seminars, weddings, dances, wine tastings and trade shows. It has a huge meeting and conference room for guests, as well as a kitchen, dining hall and an outdoor garden area. Parking is plentiful, and the staff is ready to assist you with all of your needs. Meetings are held on the first Wednesday of every month at 6:15 p.m.