Comment Re: The climate is going extreme (Score 1) 75
"Houses" probably predate homo sapiens. They my just have looked like lean-tos, but they did the same job, just not as well. And if you demand mortared foundations, they didn't show up until the very late stone age.
The thing is, when you're mobile rather than settled, a house is a very temporary asset. And they have defects as places that house lice, fleas, etc. So you usually prefer to keep moving. Agriculture is what probably caused what we think of as houses to be created, but the first "permanent" houses were probably organic developments of the pre-existing "temporary shelters".
P.S.: Look into the construction techniques used by Chimps and Orangutans. These are called "nests", but they aren't trivial constructions, and as they're in the trees, their requirements are different from ground based constructions.