We found our venue! It's absolutely perfect and beautiful! It's the Camarillo Ranch in Camarillo, CA. The site features beautiful gardens, gazebo lawn, a large lawn and the Ranch house which was built in 1882, and was the longtime residence of the City's founder, Adolfo Camarillo and his family. You can go ahead and take a look at their website, it's gorgeous! There is also a map for your reference :)