One of the primary functions of retaining walls is to prevent soil erosion. They hold back soil on a slope, preventing it from washing away due to rainwater or other natural forces. This helps maintain the stability of the landscape and prevents the loss of valuable topsoil.

Retaining walls can be used to create level areas on sloping terrain. This is especially useful for properties with steep slopes, as it allows for the creation of usable spaces such as gardens, patios, or walkways on what would otherwise be challenging or unusable land.

Retaining walls can be designed to enhance the visual appeal of a landscape. They come in various materials and styles, including natural stone, concrete blocks, timber, or even decorative bricks. These materials can be chosen to complement the overall design of the outdoor space and add an element of beauty.

In some cases, retaining walls are used to provide structural support to buildings or other structures. They can help prevent soil movement that might otherwise exert pressure on foundations or walls.

Retaining walls can be integrated with drainage systems to manage water runoff effectively. Proper drainage behind and beneath the wall helps prevent water pressure from building up, which could otherwise lead to wall failure.