The collapse of an old, closed coal mine in Newcastle has severely damaged homes.
Around fourteen homes in Lambton have been damaged, with some now facing demolition, following the initial collapse of the Old Lambton Colliery tunnels, the Newcastle Herald reports.
The mine originally closed in 1910.
Subsidence is a major problem throughout the Hunter Valley and Lake Macquarie region, with many old coal mines crisscrossing the area.
Early last year a taskforce was created to examine the costs dealing with the mine subsidence in the Newcastle CBD and Lake Macquarie suburbs of Charlestown and Glendale.
It came after concerns were raised by developers about the lack of information on the extent of undermining across the region, as well as the potential costs of remediation.
Now their concerns have been justified.
According to a spokesperson for NSW mineral resources minister Chris Hartcher, the Mine Subsidence Board has now said it is in the process of buying three houses in the centre of the collapse.
However it has not decided on whether to demolish the homes or not.