if “affordability” is defined as the typical household looking to spend no more than 30 percent of its income on housing (in the 35 largest metro areas in the U.S.A.) then zillow has an interesting info-graph showing “affordability” vs “interest rates”
NOTE for the info-graph,… the current average 30 year fixed mortgage rate for the U.S. was 4.63 percent
no surprise that metro areas w/ in CA are the least “affordable” so income property seems to be the least risky investment as long as the overall economy is positive and the CA region remains having a favorable public impression BUT given various storm clouds on the horizon think it prudent to have a hedge strategy AND a rainy day cash reserve to ride out an inevitable financial storm