GreenSpecs
Allianz - Green Building Council Australia

Retaining Walls

For those living on the coast, consider additional planting to provide extra stability to coastal land, or the development of retaining walls and other coastal erosion measures to provide your property with additional protection during storms.

In some coastal areas of Australia, sea level rise will increasingly impact both low lying properties and those directly adjacent to the coast as the impacts of climate change increase. It may cause land to be eroded and also contribute to flooding from seawater during storms and high tides.

Healthy, natural coastal habitats can help to slow wave action and reduce coastal erosion. Sand dunes and wetlands can provide a protection zone between the water and your home.

The roots of plants can act as stabilisers, so planting coastal vegetation along your property boundary can help to reduce erosion. Contact your local council to ask about appropriate plants and coastal restoration activities.

Retaining walls, seawalls, revetments, bulkheads, and groins may help to reduce coastal erosion – these are all physical structures designed to redirect waves and water. You would need an engineer to help you understand the options that would be right for your property.

It’s also very important that you contact your local council before building any physical structures, to see if they have mitigation or community plans or suggestions for reducing erosion in your area.

Building physical structures to protect your property can be an effective measure, but it can in some instances have adverse impacts on neighbouring property, so it’s important to speak with your council and your neighbours to develop a solution that is right for everyone.

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