Retaining Walls Melbourne are used for different functions such as home improvement, gardening, and building codes. Retaining walls are often constructed of concrete and have the capability to resist decay and termites. Retaining walls are typically built adjacent to a base or foundation which can help keep soil in place. Retaining wall systems are also called keeping embankments. Landscaping around a retaining wall helps to improve its physical appearance and can improve the aesthetics of a lawn.