A Flexible Passive Solar House Design

This passive solar home design is modular, allowing homebuilders to build out from the central core structure according to their needs.

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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.
RANDOLPH PADORR-BLACK AND ALBERT SINCAVAGE