Like the ancient oaks that enhance the community, Sherwood's deep historical and cultural roots are equally fascinating. Long before the land was purchased in 1984, Sherwood already had many historic landmarks. Lake Sherwood, originally Potrero Lake, is the oldest man-made lake in California. It was built in 1904 and is approximately 165 acres. It was renamed Lake Sherwood when the surrounding areas, used for the filming of Robin Hood, starring Douglas Fairbanks, Sr., in 1921, because known as "Sherwood Forest" and "Maid Marian Park."

Inside the gates of Sherwood is "Robin Hood Cabin," a home built for the movie, and it is rumored that Fairbanks lived there while filming Robin Hood. It is a registered Ventura County Historical Landmark.

Centuries-old oaks abound, setting up an aura of peaceful serenity. All around the grounds, hundreds of rose bushes in constant bloom ~ in colors of white, deep red, purples, pinks, and yellows ~ enhance the outstanding architecture of the club's Georgian~style clubhouse.