Sydney Retaining Walls

Robust, reliable and long-lasting domestic and commercial retaining walls. Guaranteed excellence every time.

We have decades of experience planning and building commercial retaining wall solutions throughout Sydney.

The Ground Stabilisation Systems team bring together a broad range of skills and extensive experience to provide the best and most cost-effective retaining wall solutions in Sydney. 

Our detailed analysis of geology, inherent pressures, rock bolting, drainage and shotcreting ensures successful long-term solutions that deliver peace of mind. We use proven techniques, including waterproof membranes, to guarantee a successful outcome. 

Make sure your retaining wall problems are solved with Ground Stabilisation Systems. Get in touch today. 

Working with us

Ground Stabilisation Systems design and build commercial retaining wall solutions that are built to last. We offer reliable and long-lasting solutions for professional businesses, councils and governments across Australia’s east coast.


Geological analysis

Our team of experienced ground stabilisation experts can professionally assess the geology of the area plus review potential dangers or pressures on your retaining system. This ensures all solutions are safe, strong, and require minimal maintenance for years to come.


Environmental and risk assessment

Safety is the first concern of any construction project. Our experienced team will ensure minimal risk for your construction team and ensure the final retaining wall product meets or exceeds all safety requirements. We’ll take the time to assess the specific challenges of your site and account for any difficulties posed by the area, such as draining, slope, soil type, usage and more. 

How we can help

If you need an experienced team to assess your retaining wall plans, look no further! We have the knowledge and expertise you need to get the job done right. Contact us today for a free consultation.

20 years (& counting) of knowledge & expertise

For more information about our services, qualifications and projects, download our free company profile.

Sydney’s retaining wall experts

We’re one of Australia’s most trusted geotechnical engineering and environmental solutions providers with 20+ years of experience in Australia, North America and the Asia Pacific. We offer difficult access solutions, excavation, rock bolting, erosion control and more. Our ISO 9001, 14001 and 45001 certified team have completed retaining wall and ground stabilisation projects throughout the Sydney area. Get in touch for a free quote.

Managment Systems

At GSS, we pride ourselves on our certified management systems, as supported by the standards and awards we have achieved. Our focus is on delivering the highest quality ground engineering services for every project we undertake. To achieve this, safety and efficiency are at the forefront of all operations that GSS are involved in.


A retaining wall is a structure built to hold back soil and rock that may otherwise collapse or erode away. Retaining walls are commonly used in sloped areas or where there is an elevation change, such as on hillsides and slopes. They can be made from various materials including timber, concrete, stone and masonry.

There are a number of different types of retaining wall, depending on the materials used to build them. The most common include cantilever, gabion, reinforced soil and segmental block walls. Each type has its own advantages and disadvantages, so it’s important to consider the purpose of the wall and your budget when selecting a retaining wall type.

Retaining walls can provide a number of benefits, including increased property value, improved soil stability, increased safety, soil erosion control, improved structural support, enhanced aesthetics and reduced noise levels from surrounding traffic. They can also be used to create outdoor seating areas, terraced gardens and water features.

The lifespan of a retaining wall depends on several factors, including the material used, its size, location and construction quality. Generally speaking, timber retaining walls can last up to 20 years with proper maintenance, while concrete and masonry walls can last up to 50 years.

We engineer, design and construct commercial retaining walls for a variety of purposes and industries including:

  • Local councils
  • Government departments
  • Civil construction
  • Mining

Our experienced retaining wall builders can create tailored wall systems to help prevent soil erosion, provide structural support and more, all backed up by exceptional professional service.

Yes, a permit is required to build a retaining wall in the state of NSW. In accordance with the Environmental Planning and Assessment Act 1979 (EP&A), any project that will have an impact on a neighbour’s property or affect the natural environment must be approved by council before construction can begin. 

Retaining walls can, in some cases, require engineering certification from a professional engineer and must meet the Building Code of Australia requirements. Depending on the height and type of the wall, you may be required to get a Development Application (DA) before starting work. 

For example, if your wall is higher than 1 metre (3 feet), you will need approval from your local council. Other requirements may include the submission of a Construction Certificate, which can be issued by either an accredited certifier or a private certifying authority. 

It is important to note that different rules and regulations apply in different areas, so it is best to contact your local council for more information on building permits and the requirements for your specific project. Doing so can save you time and money in the future, by ensuring that your project is compliant with local regulations.

In NSW, a retaining wall must be engineered when it is taller than 1 meter in height or if the wall is supporting soil that has a depth of 1.5 metres or more. It may also need to be designed and certified by an accredited structural engineer if it impedes public access, safety, drainage or other development requirements. Examples of when a retaining wall may need to be engineered include for gardens, rockeries, terraces and slopes. In some cases, the height can be increased with permission from council. 

When it comes to retaining walls Sydney businesses should contact their local council or a professional engineer for detailed information.

Designing and building retaining walls for over 20 years. Our experienced retaining wall builders will advise you on the best type of retaining wall and the best materials to ensure longevity and value. 

We use the following retaining wall materials:

  • Timber retaining walls
  • Stone retaining walls
  • Concrete blocks
  • Concrete sleepers
  • Shotcrete

Our team only use the highest quality materials to ensure long-lasting, reliable results.

We build retaining walls Sydney-wide and can install retaining walls anywhere in the greater Sydney area. We also offer retaining wall engineering and construction services throughout Australia. Get in touch for a quote.

Send us an enquiry

"*" indicates required fields

Request our Company Profile

Please fill out the form below to request our company profile. One of our team will send through our profile shortly.

"*" indicates required fields