Exterior, Shingles Roof Material, Gable RoofLine, Wood Siding Material, House Building Type, and Small Home Building Type The architects expanded the building to a total of 571 square feet. The rear entry, shown here, accesses a loft space that is currently used for storage. In the future, the loft might become an office or additional sleeping quarters, depending on the homeowners' needs.  Photo 2 of 13 in A Detached Garage Becomes a Winning “Granny Pad”