4791 Observatory Lane sits on ten wooded acres above Linden, about an hour west of Washington. Architect Wouter Boer designed it to do one thing exceptionally well: step aside and let the Blue Ridge take the lead. Stand inside, watch the ridgeline shift through a wall of glass, and the logic of a right-sized home becomes obvious. You're not really indoors. You're up in the trees. From Hunt Country Sotheby's International Realty's Chloe Powell and Sherry Santmyer.