When a 1960s remodel plopped a family room and screened porch onto the back of this 1930s Colonial, some much needed space was added, but the new space ignored the existing kitchen. Category: Kitchen remodeling, $100,000 to $250,000 Location: Washington, D.C. Contractor: Scott Hundley, Potomac Valley Builders, Poolesville, Md. Designer: Cunningham + Quill Architects, Washington, D.C. Additions