Light-filled sunspaces have the most appeal in the areas of the country with lots of dark days. “Here in the Pacific Northwest, a sunroom is a big deal and people really appreciate it,” says Bellevue, WA real estate agent Peter Freet. The sunroom will have the most appeal to buyers, says Freet, if it is “an inviting family space that works with the traffic flow, opening up to another room such as the family room, kitchen or even the master bedroom.” Sunroom breakfast additions are particularly popular.