The gap between the back wall of the pavilion and the roof is perfectly sized to capture winter sun and summer shade.  Photo 5 of 20 in A Bunker-Esque Home in Western Australia Is a Fortress Against Whipping Winds

A Bunker-Esque Home in Western Australia Is a Fortress Against Whipping Winds

5 of 20

Gaps in the concrete pavilion let light spill into the courtyard.