Buying property within a Mine Subsidence District

Find out about the changes to certificates for properties in Mine Subsidence Districts.

You can find out if a property is in a Mine Subsidence District, and what development guideline has been applied to the property online through the NSW Planning Portal.

Mine Subsidence Districts are proclaimed in areas where there are potential subsidence risks from active or non-active underground coal mining.

Development guidelines set out the requirements and allowable construction for building on a property based on subsidence risks. 

Subsidence Advisory NSW staff are available to address any questions or concerns you have about mine subsidence. 

Discontinuance of certificates in Mine Subsidence Districts

Subsidence Advisory stopped issuing certificates under s15B and s15C of the Mine Subsidence Compensation Act 1961 launch (repealed) for properties in Mine Subsidence Districts.

The change followed a comprehensive review of the mine subsidence compensation system in 2016. The review found the process for assessing whether a property complied with Subsidence Advisory’s development requirements and was eligible for compensation was inadequate.

Subsidence Advisory’s records indicate the vast majority of developments in districts are approved structures. In the last 10 years, records show only 4 claims for homes have been refused due to the structure being non-compliant.

Due to the extremely low likelihood of a claim being made for a non-compliant property, the significant cost increase to adequately undertake compliance checks prior to issuing certificates was deemed unwarranted.

As a result, the certificates were not carried over to the new Coal Mine Subsidence Compensation Act 2017. Property owners have been afforded other protections under the Act.

Register of previously issued s15B certificates

Subsidence Advisory has provided a new online register of certificates issued under the Mine Subsidence Compensation Act 1961 (repealed). The register allows users to search for a property to ascertain whether a Section 15B certificate has previously been issued and if so the date of issue.

All structures on the property at the date of issue of the last certificate are eligible for compensation should subsidence damage occur. Improvements constructed since the issue of the last certificate must have been built in accordance with Subsidence Advisory’s requirements to be eligible for compensation.

In some cases, a certificate may have been issued recently for a property or no improvements have recently been constructed or altered and the prospective purchaser may be satisfied to proceed with the purchase based on this information given the age of structures on the property.

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