The Difference Between PRICE and COSTThe price of a home is the dollar amount you and the seller agree to at the time of purchase. The cost of a home is the monthly expense you pay for your mortgage payment.
To accurately compare costs in different time periods, we must look at home prices, mortgage rates, and wages during each period. Home prices were less expensive years ago, but paychecks were also smaller and mortgage rates were much higher (the average mortgage interest rate in 1988 was 10.34%).
The best way to measure the COST of a home is to determine what percentage of income is necessary to buy a home at the time. That would take into account the price of the home, the mortgage interest rate and wages at the time.
Zillow just released research that examined home costs using this formula. The research compares the historic percentage of income necessary to afford a mortgage to the percentage needed today. It also revealed the cost if mortgage rates continue to rise as experts are predicting. Here is a graph of their findings*:
Rates would need to jump to 7% in order for the percentage of necessary income to be greater than historic norms.