Amec Developments has been selected by Doncaster Metropolital Borough Council as preferred developer for the town's Waterdale development
The develpment will see a 60acre (24 ha) site on the edge of the Town Centre into a new civil and cultural quarter.
Amec will build new civic facilities including council offices, a library, a leisure centre and a concert venue. The mixed-use scheme will also include a cinema, bars and restaurants, offices and new town centre homes.
The Waterdale development is expected to generate £18m for Doncaster's economy.