We designed this 4,500-square-foot addition to an existing home to create a dedicated place for a family to entertain. We joined an adjacent lot to the existing property to make room for a new three-story building that opens onto a patio, spa, and pool. Modern-day barn elements, such as copper roofing and wood beams, complement the materials and color pallet of the more traditional main home, while also playing on the idea of a barn as separate, extra, usable space. An open-ridge skylight lets in ample natural light.