It would be AWESOME if there was a GH house. I would buy it! Unfortunately there is no GH house, so some of us wizards are keepingour hopes up for GH houses soon after KI finishes with mounts. It would be sort of confusing if they were working on GH houses and mounts, everything would be disorganized and it probably takes them A LONG time to get all the graphics set up for the house while they are also working on mounts.
Hopefully KI will answer the call...I keep hoping for one as well! Have your friends put their request in too as it will show the KI staff that it is more than just a few people wanting this feature. :D