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.
Cost of Building a House per Square Foot: Location and Cost per Square Foot. In the South Eastern United States the average home costs about $80 per square foot, while in California the average cost is $130 per square foot. This does not include the lot, which is also much more expensive in California. Prices in the North East are between $100 and $130 per square foot. The prices seem to rise as you travel up the eastern seaboard, with the exception of Florida which is a little higher than the rest of the South.