"We try to keep the character of a home, particularly if it's in a historic district, but we want to add modern things like a walk-in pantry or a half-bath on the first floor," Mr. Ditto said. "Adding a second story or a third story to a home, particularly if it isn't visible from the front, often works well even if it's not congruent with the original design."
Martin Ditto, president of Ditto Residential in the District, said, "The first step is to decide how much to keep of a traditional home. We typically renovate a home and then sell it, so we're our own customer at first. Typically we try to keep as much as we can of things like moldings."