Real estate sales in Boulder County were down 3.7% in October 2017 compared to October 2016. While housing inventory increased in the first half of the year, it has leveled off and declined slightly since June compared to the previous year. Over 40% of single family homes on the market were under contract by the end of October. New housing listings and homes going under contract have followed trends from previous years. Through October, home sales in 2017 were down 6% from 2016 and 16% from 2015.