This paper studies U.S. house prices across 45 metropolitan areas from 1980 to 2012. It applies a version of the Gordon dividend discount model for long-run fundamentals and uses Mean Group and Pooled Mean Group estimation to estimate long-run and short-run determinants of house prices. We find great similarity across cities in that the long-run house prices are largely explained by the same fundamentals; the long-run rent to price ratio is approximately 5% plus 0.75 times the real interest rate (which is on the order of 2%). However, adjustments to deviations from the fundamentals are slow, in the long-run, closing the gap at a rate of around 10% per year. We find sharp differences in short-run adjustments (momentum) away from the fundamentals across cities, and the differences are correlated with local supply elasticities (more momentum with lower elasticity). Analysis of residuals suggests strong cyclical deviations, which are mean-reverting.