Two homes along the New South Wales Central Coast have partially collapsed during high tide overnight and other luxury beachside properties along the shore face a similar fate.
Shocking pictures released on Saturday morning show homes missing walls, which have fallen into the sea, and others standing on only concrete blocks, the land around them swept away as waves lap at what's left.
An east coast low caused strong waves to hammer the seaside homes near Wamberal Beach for several days, causing severe erosion.
Wamberal Beach has been declared the worst-hit area, where 66 homes are now deemed "at risk".