With the Dulles Corridor in Fairfax and Loudoun counties expecting to add more than 220,000 new jobs and 86,000 new households in the next 25 years, developers are clamoring to build new commercial and residential properties around the 11 future Metro stops.

“I think if Metro goes in, it’s wide open all over again,” said Gerald L. Gordon, president and CEO of the Fairfax County Economic Development Authority.