The original split-level configuration of this home was maintained but the central stairway was rebuilt and exposed to access a new upper floor and rooftop deck with views of downtown Seattle and Mt. Rainier. All opportunities to expose structure were taken on the interior, from uncovering existing wood decking and floor beams to the open wood stair and steel railings. The large cantilevered shed roof provides passive solar shading for interior spaces and preserving exterior siding materials below. Sustainable building strategies and materials were utilized wherever possible throughout the project.