Photo by Erin.

The D.C. government is hardly the only entity taking advantage of the city’s hot housing market to turn a tidy profit. More than a quarter of all homes sold in 2015 passed hands in less than three years, according to data published by District, Measured.

Problems with unscrupulous house flippers (and scammers) abound to the point that the Office of the Attorney General even took it upon themselves to educate the public. But, if nothing else, they appear to be doing a brisk business—and raking in the dollars.

Courtesy of District, Measured.

In fiscal year 2015, 26 percent of all houses were sold by people (or businesses) that had only owned them for three years or less.

Courtesy of District, Measured.

And only homeowners who owned for 12-13 years ($239,250) or 14+ years ($324,050) saw higher average returns than those who sold after less than three years ($132,000).

People who bought eight or nine years ago, at the height of the last housing boom, saw the lowest gains, at $46,000.

Last year, four D.C. neighborhoods made Redfin’s top ten list for house flipping in the U.S.: Petworth (at number 1), Brookland (ranked third), Fort Totten (7), and Stadium-Armory (8).