Some great ideas on here for those who are looking at smaller, more affordable dwellings (they're probably more environmentally friendly too, using less energy and fewer materials to make) https://documentaryheaven.com/small-homes-tiny-flats-wee-shelters/
our house is 6mX9m and one light illuminates the whole place, it is oriented north on a northerly aspected block and is coasy, no cooling or heating needed. len