Height of the wall
Its location relative to boundaries and other structures
Impact on drainage or public land
Whether it supports additional loads like driveways or buildings
Zoning or overlay restrictions (e.g. heritage or bushfire zones)
✅ Building Permit (for structural integrity)
✅ Development Approval (for planning/zoning compliance
Let’s break these down.
According to the National Construction Code (NCC), a building permit is required for most retaining walls under Retaining Wall Council Approvals W.A., particularly when:
The wall exceeds 0.5m in height
It supports buildings, driveways, or fencing
It is built near a boundary where it may impact neighbouring land
It alters natural drainage or is located in a risk-prone area
Understanding the requirements for Retaining Wall Council Approvals W.A. is essential to ensure compliance, avoid penalties, and protect both your property and neighboring sites.
⚠️ Building without a permit can result in fines, rectification orders, or forced removal. Always check your local rules, e.g. City of Joondalup Guide
Development Approval (also called Planning Approval) is often required as part of the Retaining Wall Council Approvals W.A. process, especially when the retaining wall:
Exceeds 500mm in height
Is close to or built on a property boundary
Impacts natural drainage, landscaping, or public infrastructure
Supports additional loads such as parking areas or buildings
Is located within special planning zones (e.g., heritage overlays)
These approvals ensure compliance with R-Codes, local zoning laws, and help prevent adverse effects on neighbouring properties.
Visit WA Planning Portal to check your local development guidelines.