How to Build a Retaining Wall in Australia (Step-by-Step)

Building a retaining wall involves planning, approvals, site prep, construction, and drainage. While small walls can be DIY, most Perth walls benefit from professional installation.

Key Steps Choose your wall type and design Get engineering plans (required for walls over 0.5m in WA) Apply for council approval Prepare the site and excavate foundations Install drainage, build the wall, backfill When to Hire a Pro We recommend professionals for any wall over 0.5m, boundary walls, and walls near structures. Get free quotes from WA-licensed builders.

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How to Build a Retaining Wall in Australia (Step-by-Step)

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