One-of-a-kind property in the highly desirable Northgate Walnut Creek. This home has been loved and lived in by the original owners. Built in 1966 as a four-bedroom, three-bathroom home, it has been expanded over the years into a nine-bedroom, six-bathroom home. After the first addition, the front house is two stories with six bedrooms and four bathrooms. The second addition was finished last year. The back house is a brand new three-bedroom, two-bathroom with a full kitchen, laundry, and separate entrance. Both are connected with one door that can be bolted shut providing for rental opportunities or to house grown children or extended families. The possibilities are endless.