What else is the porch good for? Tricycle races, of course.
Soren and Annika share a lofted bedroom and a pair of bunks. In Barker and Inzunza's house, this space is used as an office and music room.
The structures share a solar panel, but the families control their own home's heat level with a wood-burning stove.
An 800-square-foot addition expands the Virginia home of Lauren and Josh Stegall. Built for $120,000, the structure has a large window overlooking the Blue Ridge Parkway and Sugarloaf Mountain.
A recess in the wall fits a custom desk and IKEA chair.