Appraising a home with 1,620-sf above grade and the same below grade, all finished in similar quality and style. Trouble is that the home is an owner-built custom which has the following above-grade rooms: kitchen, dining room, family room, 1/2-bath, and master suite. Below grade are 2 more bedrooms, full bath, a media room, an office, and a den. I'm curious as to how other appraisers handle the 1-bedroom above-grade situation when no comps are to be found with similar room count. Thanks!