Shutterstock.com If you want to buy a home, it will cost you. Mortgage site HSH.com has updated its estimate of how much annual income a household would need to buy a home in major metropolitan areas in the US, according to first-quarter 2016 data. In Q1, the site found that the prices of sold homes in the majority of the markets it examined dropped from Q4 2016, but an increase in 30-year mortgage rates more than countered that drop.