A long house divided down the middle.
A suite of wet areas to one side (kitchen, bathroom, toilet, laundry, where all the rain harvested from the roof is stored in a waterwall with taps for direct access). A suite of dry areas to the other side (dining, living, sleeping, working, relaxing).
A suite of temperate areas for growing vegetables, herbs and other plants in between.
All lit by skylights.
All lit by the sun.