"We're awaiting the arrival of a geotech and structural engineering team who will monitor and assess the ability of the land to hold that building up there."
Emergency services near the scene. Photo / Nick James
They were working with the city council to find accommodation for people, Pyatt said.
Pyatt estimated the slip was about 4m deep and fire crews were keeping a close eye on a large tree that had possibly been undercut.
A couple of gas pipes were severed when the landslide came down, but they have since been isolated, Pyatt said.