Retaining Wall with Fence on Top: Design & Cost Guide

Ideas and guidance for combining retaining walls with fences in Adelaide. Colorbond, timber, and glass options on various wall types.

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Concrete Sleeper

Concrete Sleeper + Colorbond

Clean concrete sleeper wall with Colorbond fence on top — Adelaide's most popular combo

$350-$600/m²Learn more →
Concrete Block

Block Wall + Aluminium Slat

Rendered block wall topped with modern aluminium slat fencing

$400-$650/m²Learn more →
Sandstone

Sandstone + Heritage Iron

Traditional sandstone wall with wrought iron or heritage-style fencing

$500-$800/m²Learn more →

Combining Retaining Walls with Fences in Adelaide

Combining a retaining wall with a fence on top is one of the most common requirements for Adelaide boundary projects. This provides both soil retention and privacy in a single structure. The key is to plan the wall and fence as one integrated project, not as separate additions.

The most popular combination in Adelaide is a concrete sleeper retaining wall with Colorbond fence on top. This provides the strength and durability of concrete sleepers with the privacy and colour options of Colorbond. The fence posts are typically set into the retaining wall during construction for maximum strength and a clean finish.

Fence Options for Retaining Walls

Colorbond Fencing

Adelaide's most popular fence choice. Available in a wide range of colours. Low maintenance, durable, and provides excellent privacy. The standard choice for residential boundaries.

Aluminium Slat Fencing

Modern aesthetic with adjustable privacy through slat spacing. Available in various colours and profiles. Popular for contemporary Adelaide homes. Low maintenance and long-lasting.

Glass Pool Fencing

Frameless or semi-frameless glass creates an unobstructed view. Ideal for pool areas and elevated positions where you want to preserve the outlook. Premium option at a higher price point.

Heritage Iron / Wrought Iron

Traditional option that complements sandstone and heritage walls. Popular in Adelaide's character suburbs like Norwood, Burnside, and North Adelaide. Provides a classic elegance.

Height Rules for Wall + Fence Combinations

In South Australia, the combined height of a retaining wall and fence is an important consideration. The retaining wall portion over 1 metre requires development approval. The fence component is generally regulated separately, with most councils allowing fences up to 2.1 metres on side and rear boundaries.

However, when a fence sits on top of a retaining wall, the total height of the combined structure as viewed from the lower side can be significant. Some councils may have specific rules about the total height of wall-plus-fence structures. It is essential to check with your local council and engage a builder who understands the regulations.

Your builder can advise on the optimal split between wall height and fence height to achieve your desired privacy while complying with local regulations.

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