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.
The price per square metre also depends on the size of the property. There are basic costs that don't increase too much with size and hence the cost per square metre will decrease as the floor area increases. The price for a home extension depends on several factors. 1  Where you are in the country.s a rough idea you can typically say that it will cost at least Â£1000 per m 2 or 93 per ft 2 including basic plumbing and electrician work. This price is per unit area of internal floor space and so a 5x4m single floor extension will have a total floor area of 20m 2 and a double storey will have 40m 2.