Have you ever thought about building your own low cost home, which has minimum impact on the environment? If so you will be interested in reading about the family who built their own low impact woodland home in Wales out of wood and straw bales. It took two men with help from passers by and visiting friends four months to build a house a family could moved in to and be cosy. They estimate it took 1000-1500 man hours and £3000 ($6,000) put in to this point. This is not really so much in house buying terms, roughly £60/sq m ($120/sq m) excluding labour.