This passive solar home design is modular, allowing homebuilders to build out from the central core structure according to their needs.
The passive solar home depicted here is designed in 4'-wide modular units for flexibility.
ILLUSTRATION: RANDOLPH PADORR-BLACK AND ALBERT SINCAVAGE
Floor Plan: 4' × 4' module. The core structure, consisting of the area shaded in red (G through S across the top and 1 through 8 down the vertical axis), is 1,350 square feet, but can be expanded with modular units, as shown.