Just a few blocks east of the Anacostia River, an unsuspecting row house in Ward 7’s Fairlawn neighborhood is being transformed. On Saturday, the Nicholson Project, a new artist residency program, will host an exhibition and celebration in the house at 2310 Nicholson St. SE from 3 to 8 p.m. The event will mark the launch of a space that will soon be home to a revolving artist-in-residence, who will live and work there.