The Okanagan is hot, but not for many months of the year, and it’s a dry heat. With proper shading, thermal mass, and good air flow, we don’t need air conditioning. Mount shades outside the windows. Only build one room deep. Make your windows big, and open them, or better yet, make whole walls slide away. Pay attention to the prevailing breezes, and orient your buildings to use them. Leave existing mature trees to shade your roof.