Building materials giant CSR has put up for grabs a massive land parcel next to Sydney’s next airport, with enough space to develop a $3-4 billion industrial estate in the heart of the much-heralded Aerotropolis.

A former brick manufacturing and quarry site, the 194-hectare chunk of land is one of the largest tracts of remaining land within the Aerotropolis precinct and could one day be home to one of the country’s biggest industrial estates.