text:  If you look at this model that's designed by the Federal Reserve, they think they're about 25 percent overvalued. That compares with 27 percent at the peak of the market back in 2007. Now, this depends a little bit on the inputs that you use in these models. So since a lot of the valuation of a house depends on what the price is of the alternative, which is to rent, it will also depend on which measure of rent you use.