According to the NAHB [1], construction is about 60% of a house's cost (the rest eaten by land, financing, etc.). Of construction cost about 20% is foundation,

According to the NAHB [1], construction is about 60% of a house's cost (the rest eaten by land, financing, etc.). Of construction cost about 20% is foundation, framing + insulation (what we have in this design). For this particular design it's not just all the finishes though, since you still need plumbing, electrical, etc. [1] http://www.nahb.org/assets/images/Table1_201035133529.jpg http://www.nahb.org/assets/images/Table1_201035133529.jpg