2024 Retaining Wall Cost — Cost To Build Per Foot & By …
A retaining wall costs $20 to $50 per square foot on average or up to $150 per square foot for complex layouts, specialty materials, and sloped or limited-access sites. Cost per square foot to build a retaining wall. Wall type. Total cost per square foot. Cinder block (CMU) $20 – $35. Poured concrete.