Out of the 15 most expensive Houston homes that have sold in the first nine months of the year, 60 percent are in River Oaks.

The 15 most expensive homes range in size from 5,440 square feet in River Oaks to 13,467 square feet in Sugar Land. The oldest home was built in 1933, and the newest homes include two built this year in River Oaks. Click through the slideshow above to see the 15 most expensive homes that sold in Houston this year.

The most expensive home that has sold this year is 920 Kirby,…