Plans to build 1500 new homes on a stretch of china clay land to the north of St Austell have been submitted to Cornwall planners.
It's hoped that the eco-community at West Carclaze would create hundreds of jobs and generate £1 billion for the local economy over the next 20 years.
The proposed development in numbers
The plans include a community centre and health centre, as well as local shops and parking.
The plans have been revised significantly from earlier proposals - which included a controversial plan to landscape the iconic Sky Tip - after a public consultation.
It comes as Cornwall Council indicated a need for 52,500 new homes across the county. Developers Eco-Bos will undertake the work to with the Council and the Homes and Communities Agency.
Sustainability it a key part of the proposal, with a 9MW solar farm and sustainably built homes planned.