Here's a building I made last week, and we used it in a game a couple of days ago (battle report to be submitted as soon as).
It's my first go at a native dwelling, made in a vaguely middle-eastern style but 40k'd up with bits from GW's Cities of Death building kits. The basic structure is just foam card, and the next one I do will be a more complicated shape. I plan to make a load more so we can set some games out in the native areas, as most of our games so far have been set in the mining enclaves of the Imperial Mining Concern.
Rear (note suspicious graffiti as noted on recent patrols and reported to garrison HQ).