A friend's mother is having a house built. Increase in cost of building supplies just added $30,000 to the cost. I don't know the original cost but probably somewhere around $250,000. So about 10% more or less.
My feeling is this won't last very long. People will do as Randy has done and just wait to build. Of course as long as the government keeps handing out money like they have it to give away, who knows?