Authorities are working to fill a gaping hole after part of a driveway collapsed due to heavy rain on Sydney's northern beaches, threatening residents in an apartment block.
The ground caved in and ruptured a gas main at a construction site next door to the units on Frazer Street, Collaroy, on Tuesday morning.
Truckloads of recycled bricks are being brought in this morning to fill the massive hole and secure the site before work on the gas pipe can resume.
Structural engineers at the site have been monitoring any movement with lasers.
Twenty residents were evacuated from the units above the site yesterday and were expected to be able to return on Friday.
They spent the night in temporary accommodation, but it could be some time before they are allowed to return to their homes.
Phil Summers was one resident who stayed and spent the night in his house without gas or hot water.
"I heard a small crash last night... a few of the sandstone bricks fell in," he said.
"[It makes me] more angry, this development should never have gone ahead.
"We put in 20 submissions to the council, everyone was knocked back we just knew something like this would happen.
"You can't dig up half an peninsula and expect everything else to stay in place."
© ABC 2014
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