Zillow is a real estate and rental marketplace based in Seattle.
Existing-home sales rose 0.4% to an annual rate of 5.47 million in January, reaching the highest annual rate in six months, according to theNational Association of Realtors.
Home resales are up 11% from last year, marking the biggest year-over-year gain since July 2013.
The median price for existing homes climbed 8.2% to $213,800 from the year-ago period.
Total housing inventory was up 3.4% to 1.82 million at the end of January, but was still 2.2% lower than a year ago.