Dividing Line

The home’s central “spine,” which 

Witzmann describes as “the back-

bone of the house at a load-bearing 

and technical level,” serves as the 

structure’s organizing principle. It 

groups the ventilation system and the 

majority of the electrical networks 

together and centralizes much of the 

home’s storage. By siting the living 

spaces on the south of the house 

so that they take advantage of the 

natural light, and placing the sanitary 

and service rooms on the north, the 

architects make the most of a smart 

passive solar layout.  Photo 3 of 8 in Passive Progressive