Credit: Levander Lab/Rice University. A team of scientists led by Rice University has figured out why the Colorado Plateau -- a 130,000-square-mile region that straddles Colorado, Utah, Arizona and New Mexico -- is rising even while parts of its lower crust appear to be falling.
back to estimates list. A ground level house extension in Australia costs around $1,400-1,500 per square metre. When house prices are high, as they are in many parts of Australia at the moment, adding a room or extending your living area on the ground floor can be a more affordable way to create space than moving.
Build Costs. Extension Size. This will affect the cost more than any other factor. You can think of house extension costs in Â£ per mÂ², anywhere in the range of Â£1,000 â Â£3,000. A small change in size will have a big effect. Extension Type. A basement is more per mÂ² because of the dig out.