Battlefront had a box of five adobe desert buildings available in a single box, but eventually took them off the market. They're making them available again at the end of the month, but they're changing a couple of things.
First and most importantly, the new buildings have removable roofs, so you can put your troops inside. Additionally, the two story building allows you to remove both the roof and the second floor as needed in order to get your troops in and out.
Second, the buildings are no longer being sold in a single large package. The old package had two identical small buildings, two identical medium buildings, and one large building, complete with low walls that matched the architecture. The new buildings are being sold in two different packages. One package will contain one small building and one medium building. The other will contain the large building. Both will include the low walls, and the large building will also have a small fountain.
Links here -
http://www.flamesofwar.com/Default.aspx?tabid=53&art_id=3066
http://www.flamesofwar.com/Default.aspx?tabid=53&art_id=3065
I would expect to see more buildings being made available soon. The Ruined Monastery was released for Cassino, and aside from some issues with the base warping, has been generally well-received. There was once a set of four rural Soviet buildings that used to be available, and I expect Battlefront to be releasing those once again in smaller bundles. The V3 intro video also showed a very nice looking Russian Church on one of the shelves in the background. And there is information suggesting that Battlefront will finally be releasing some buildings appropriate for Western Europe in the not too distant future.