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Garden Retaining Walls — a completed example
Typical pricing below

Garden Retaining Walls

A garden retaining wall is a small-scale wall, usually under half a metre high, used to hold back a garden bed, terrace a slope, or edge a raised planting area rather than carry serious structural load. Because they're low and often outside council permit thresholds, they can generally use lighter materials and simpler footings than a structural retaining wall. They're as much a landscaping feature as an engineering structure.

Pricing guide: How much does a garden retaining wall cost?

Typically $150 to $400 per square metre of wall face for low garden walls, depending on material, height and finish.

Why homeowners choose it

  • Creates terraced garden beds and defined planting levels
  • Usually falls under permit height thresholds, simplifying approval
  • Wide choice of materials, including timber, block, brick and stone
  • Lower cost than structural retaining walls due to reduced footings
  • Adds clear definition between garden beds, lawn and paths

How it works

  1. 1
    Design and layout

    Wall height and line are set out to suit the garden bed shape and the block's natural fall.

  2. 2
    Excavation

    A shallow trench is dug along the wall line to set the first course below finished ground level.

  3. 3
    Base preparation

    A compacted road base or sand layer forms a level base for the first course.

  4. 4
    Wall construction

    Sleepers, blocks or stone are laid course by course, checked for level as the wall is built.

  5. 5
    Backfill and planting

    Free-draining backfill is placed behind the wall before garden soil is added and the bed planted out.

Hiring guide

Questions worth asking before you commit to a contractor.

Are they licensed and insured for this work?

Ask to see it, not just take their word for it. Insurance protects your property if something goes wrong on site.

What exactly is included in the price?

Site preparation, disposal of old material, and any council permits can be included or charged separately — get it in writing before you compare quotes.

Who will actually be on site?

Some contractors do the work themselves; others subcontract parts of it. Neither is wrong, but you should know who is doing your job.

What happens if something unexpected turns up?

Old concrete, tree roots or drainage issues are common surprises. Ask how a change of scope gets costed before it happens, not after.

What is the warranty on the work?

Materials usually carry a manufacturer's warranty. Ask specifically about the contractor's own workmanship warranty too.

More guides and advice

Frequently asked questions

How much does a garden retaining wall cost?

Typically $150 to $400 per square metre of wall face for low garden walls, depending on material, height and finish.

Do garden retaining walls need council approval?

Most Victorian councils don't require a permit for walls under half a metre with no structural load behind them, but check locally as thresholds vary.

What materials suit a garden retaining wall?

Timber sleepers, concrete besser block, brick and natural stone are all common choices, generally selected to match the surrounding garden or house.

Do low garden walls still need drainage?

Even small walls benefit from free-draining backfill behind them to stop water pooling and pushing against the wall over time.

Ready to get quotes?

Tell us about your job once. Reviewed requests go to local contractors, and they come to you.

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