Greater Wellington Regional Council is moving into compulsory land acquisitions for the $700 million RiverLink development, Lower Hutt’s biggest infrastructure project.

Graeme Campbell, manager of the council's flood protection department, said the council, Waka Kotahi NZ Transport Agency and Hutt City Council needed about 120 properties for the project. It had come to agreements with landowners to buy 105 properties, with 15 outstanding.