Older Arlington homes often suffer from compartmentalized floor plans that make the interiors feel small and dark. Case alleviated this problem by replacing a solid wall between the foyer and living room with a sleek glass partition. “It’s an unexpected, modern touch that lightens the home both figuratively and literally,” he says. “It brings the outside in by extending the view of our backyard and channeling natural light deeper into the main floor. And like a cherry on top, the cable rail on the staircase finishes it off beautifully.”