Thousands of new homes with nearby parkland and wildlife areas are to be built in Northamptonshire.
The scheme for Stanton Cross, east of Wellingborough, could also create 7,000 jobs over the next 15 years.
At an extraordinary meeting of Wellingborough Borough Council on Wednesday night, outline permission was granted for plans from Bovis Homes.
Bovis will build 3,100 homes at Stanton Cross with shops, community facilities and 200 acres of riverside parkland.
There will be a new regular bus service linking the development to the station and the town centre and an eastern relief road will also be built.
Allowance for wildlife
Work on the scheme will be phased in over the next few years.
The Stanton Cross housing scheme depended on creation of parkland in a floodplain setting to allow wildlife to move in and thrive on former agricultural land in the Nene Valley.
The development will also encompass lakes in abandoned sand and gravel pits dug during the 1980s.
Two access roads are to be built across the floodplain and these will be culverted to allow wildlife to roam.
The only objections have come from the Ramblers Association which said the project would affect several rights of way.
A spokesman also said: "No amount of floodplain creation or ecological compensation would make amends for the upheaval caused to low lying river areas by mineral extraction."