The answer to the cost of a retaining wall is that it can vary widely depending on several factors. Typically, retaining wall costs range from $20 to $50 per square foot, but the final price can be influenced by the size, materials, site conditions, and labor required.
Larger retaining walls, those made of more premium materials like natural stone or concrete, and those that require extensive site preparation or complex engineering will be on the higher end of that range. Smaller, simpler walls using basic materials like treated lumber or concrete blocks will be on the lower end. Getting quotes from local landscaping companies is essential to determine the precise cost for your specific project.