Betsy Friedlander, 66, and Mike Klipper, 67, have adored their light-filled, three-story colonial in suburban Bethesda, Maryland, for nearly three decades. They had the more-than-3,000-square-foot home built, and they raised their two sons in it. Now with the boys grown and gone, they are looking for a new home as part of a new lifestyle.

"I think we wanted to have more of an urban life, if we could be downtown and walk to everything, that would be our preference," said Mike.