Retaining Walls in Minmi
Building a retaining wall in Minmi, Newcastle? Council's Development Control Plan carries a control for Minmi headed “Landscape design – contaminated land and land stability”, which asks for “particular regard for past mining and filling activities” when the land is assessed.
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Retaining Walls around Minmi
That control applies directly to excavating for, or building, a retaining wall on a Minmi block. It asks that measures be taken to assess the nature of any contamination or effect and to take remedial action where necessary.
The plan asks for regard to past activity; it does not say that Minmi land is unstable, or that the suburb is inside a Mine Subsidence District. Check your own address on the Spatial Viewer, and see the drainage page below for the planning certificate that states what Council knows about a lot.
Permits and City of Newcastle rules
A wall that is not exempt or complying development needs a development application to City of Newcastle. Exempt means no more than 600 mm high and clear of boundaries, easements, sewer and water mains, so check the lines on the main retaining walls page and confirm with Council before work starts.
Source: City of Newcastle, Retaining walls (building and development information guide); State Environmental Planning Policy (Exempt and Complying Development Codes) 2008 (NSW), exempt development standards for retaining walls; read 27 September 2026. — confirm current requirements with City of Newcastle.
Our Minmi service area
An enquiry from Minmi is passed on to an independent local provider, who gets in touch to look at the job.
See all Retaining Walls in Newcastle. We also work in The Hill, Cooks Hill and Kotara, among the other suburbs we list. See retaining wall drainage for the planning and flood certificates. Related pages: retaining walls, drainage and site rules and replacing a wall.
Call (02) 4915 2985Last reviewed · Updated · First published