Surface Development Guideline 3

Guideline 3 applies to properties with a remote risk of subsidence. This subsidence forms as a result of underlying, potentially unstable, abandoned coal mine workings being present.

Allowable residential construction

Guideline 3 allows for complying developments that conform with the following description:

Up to four storey residential developments designed and constructed in accordance with the current editions of AS1684, AS 2870, AS3600, AS3700, AS4773, the National Construction Code, and applicable Australian Standards. Site classification “P” for Mine Subsidence Site is to be ignored for these structures.

• Masonry is to be articulated, in accordance with the current editions of Australian Standards AS3700 and AS4773.
• Ground floor commercial use is permitted
• Single level basements are permitted and will be included in the total number of storeys

Other allowable additions and improvements

The below types of additions and improvements are also permitted on properties subject to Guideline 3:

• Concrete swimming pools, both in-ground and above-ground
• Retaining walls designed and constructed in accordance with applicable Australian Standards.

Exempt developments

In addition to the above, Subsidence Advisory has exempted some minor construction works from requiring approval under s22 of the Act.

For a full list of exempt developments, please refer to Subsidence Advisory’s Exempt Development list. 

Proposed developments that do not comply with Guideline 3

Applications for proposed improvements that do not comply with the Guideline assigned to the property may be assessed under Subsidence Advisory’s Merit Assessment Policy. 

Who can assess whether development complies with Guideline 3

Applications for proposed development that complies with this Guideline can be assessed by Subsidence Advisory, the relevant council or a registered certifier as defined in the Environmental Planning and Assessment Act 1979.

Disclaimer

Please note that Subsidence Advisory’s Surface Development Guidelines are subject to change.