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.
Top-quality bathrooms, even small ones, start at around $10,000 and go up to $20,000 or more. The average house extension on Builderscrack.co.nz costs $60,000; this covers a huge range of work from a simple conservatory extension ($6,000) up to a big 70m 2 second-storey extension ($350,000).