Guest house addition on top of existing three car garage. Main level includes Exercise Studio, Great Room with Kitchen, Bath, 400 SF solar heated Sun Room. Upper level includes 2 Bedrooms, Bath, Laundry. Two Spiral Staircases and an Elevator provide vertical circulation. An enclosed ramp connects the Guest House to the Owners' existing Tiny House. State-of-the-art insulation and air-tight construction make the building highly energy efficient.