Retaining wall costs depend on material, height, and site conditions. In Perth, expect $150–$600/m² depending on your choice of wall type.
Additional Costs
In WA, walls over 0.5m need engineering ($800–$2,000) and council permits ($300–$1,000+). Factor these in.
See our complete cost guide for material comparisons. Get accurate quotes from WA-licensed builders — it’s free.
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