A careful study of the Olfelt House informs all aspects of the addition; design drivers include a strict adherence to the 30/60 grid, use of acute angles, framing of views, the balance of glass vs. solid, connection to exterior through planters, patios, and window design, and overall geometries and materiality. The addition is faithful to this design logic, and uses emblematic details to create a harmonious composition. The following details mimic details from the existing structure:
1 hexagon tower to accommodate stairs
2 long, thin windows at hexagon towers
3 clerestory windows above interior storage
4 eave, pitch and overhang at roof
5 integrated planter
6 prow windows with diagonal mullions
7 large glass and doors opening to outdoor space
8 ribbon windows at study