Exterior, House Building Type, Stucco Siding Material, Wood Siding Material, and Flat RoofLine The building retains its original footprint; this was an important detail for the homeowners who wanted to be as environmentally-friendly as possible. “The biggest element I work with is to use the existing structure when I remodel,” says Juilland.  Photo 2 of 8 in This Boulder Home's Unique Bedroom-Bathroom Puts a New Twist on the Open Plan