California student built cabin with hand tools in 1974; now part of $6m estate

Kenneth Roebbelen’s estate began as a hand-built cabin in the 1970s. This property later expanded significantly with his career and family growth. The current 48-acre El Dorado Hills estate features a 9,800-square-foot main house. It also includes a recreation center, lap pool, runway, and hangar. The property is now listed for sale at six million dollars.