Cafe owner said a staff member was punched in the face by one of the robbers, knocking her to the ground.
Three were injured in the late-morning mishap in Cambridge's main street.
33 hectares of land is about to become a hustling hub, employing 300 people.
Online real estate agency set up by Hamilton Boys' High old boy.
Construction is set to begin on Tainui's new five star hotel at Auckland Airport.