Active job

build a cabin or unit .4.800 wide.by 7m long gable roof

want a price of a future build on a greymouth flat section. I want a unit built. also called granny flats 4.800 wide.by 7 metres long. gable roof. .one bed. small toilet suite.. one open plan. I just need a price to see if I can afford a build. can it be built for under $30.000