I am frequently asked how much is cost to build a home in Hawaii. That is a very difficult question to answer because there are so many variables involved. The most basic variables would be square footage (house size) and quality of construction. Quality is the main issue. You might be able to build a kit home from one of the larger lumber yards like HPM or Honsador for between $150 to $185/square foot. This would be the most basic home with linoleum and carpet flooring, formica-type countertops, particle board cabinets, hollow Masonite doors, 20 year asphalt shingles, T1-11 siding and low cost fittings and fix rues. From there the sky’s the limit. A low cost toilet might be $150. But you can spend over $1,000 for some high end toilets. Solid wood cabinetry of all different types of woods are available at varying cost. Same with solid wood doors. There are even specialty brand-name door hinges available. Flooring can be laminate, real wood, ceramic tile or marble, etc. Countertops can be man-made solid surface, granite of all different colors and costs. There are dozens of types of roofing material all the way up to custom glazed ceramic tiles. At this point you are well over $1,000/sq.ft. The only way to know for sure what your new home is going to cost is to get your plans drawn with a materials list and give them out to three contractors for bids.