A new NAHB study shows that, on average, regulations imposed by government at all levels account for 24.3 percent of the final price of a new single-family home built for sale. Three-fifths of this—14.6 percent of the final house price—is due to a higher price for a finished lot resulting from regulations imposed during the lot’s development. The other two-fifths—9.7 percent of the house price—is the result of costs incurred by the builder after purchasing the finished lot.