This is my current favorite. 1787 Sq ft. Great house! Efficient use of space (no hallways=no wasted space) great passive solar design with large low windows to catch winter sun and eaves to block hot summer sun. I would extend eves over the side with the main entry and create a covered porch, wood stove instead of FP. Add garage with entry through utility/laundry. Check out version 2 with carport.
Deltec Homes, Renew Collection, "Ridgeline" (B) 1604sf ~ Passive solar layout, vaulted ceilings & high clerestory windows. Uses 2/3 less energy than typical home, can achieve net-zero energy. Shell price according to South or North energy modeling: Pre-painted Allura fiber cement siding, window & door package, floor system, advanced wall system & energy modeling for your climate. *See completed Ridgeline: http://www.deltechomes.com/an-update-on-the-first-renew-collection-home/