A growing number of people are now living out of their vans for all sorts of reasons and one is work. If you look on Youtube you will see a very very popular huge video section on all kinds of van conversions for van living. Just Transit type vans fitted out with showers/bogs/cooking and heating with pullout beds. Quite ingenious and extreme money saving living.
I don't need to look on Youtube mate, just driving around I've seen more and more converted vans, campers etc parked up. Something is wrong if people can't even afford to rent let alone buy a house.