According to data from Bright MLS, July saw a record high for median home prices in the D.C. metropolitan area.
Last month, median sales prices hit $470,000 in the metro area, up 3.3 percent from last year.
Cities and counties leading the way were Falls Church, Arlington, the District of Columbia and Fairfax County.
In D.C., the July median home price was $592,500.
Realtor Wyevetra Jordan, of EXIT Landmark Realty, tells FOX 5 she expects prices to continue to rise because of a lack of supply.
Jordan also says Northern Virginia prices are increasing partly because of Amazon's plans to build its HQ2 in Crystal City.
"It's the Amazon effect and people holding on to their real estate because when they're not enough houses on the market of the course housing prices go up," said Jordan.