Updated October 2026
St Andrews Beach is large sandy blocks in low coastal scrub, with a mix of older shacks and newer architectural houses. The retaining here usually comes with a build rather than from a failure: a level platform for a house or shed, a terrace to make a courtyard out of a slope, a wall that holds the driveway where it cuts through a dune. Sand and distance are the two constants.
To be clear on what we do: we are a referral service only. We pass your enquiry to experienced, insured local retaining wall builders who work across St Andrews Beach.
Materials and what suits St Andrews Beach
Concrete sleeper walls handle most of this work and cope with sand well. Block retaining walls take the engineered jobs. Timber suits low garden terracing on a budget. Behind all of them, gravel and geotextile fabric keep sand out of the drainage, as the drainage page explains.
What to budget
Guide pricing only. A wall about a metre high runs from roughly $200 per metre in timber to $700 or more per metre in stone and engineered block, with concrete sleepers in between. Footing work in sand and cartage to this end of the Peninsula are the main additions. Blocks are generally open, so machine access is usually good. The retaining wall cost guide has the full ranges, and a site visit is the only way to price your block honestly.
On approvals: councils and the VBA set height and engineering thresholds for retaining walls in Victoria, and the builders we work with confirm what your wall needs before quoting. Mornington Peninsula Shire Council or a registered building surveyor can confirm what applies to your block.
Frequently asked questions
Does a house platform wall need engineering?
A wall supporting ground under or near a structure carries a surcharge and generally needs an engineer's design, whatever its height.
How do I stop sand escaping from behind a wall?
Geotextile fabric between the soil and the gravel column. It is cheap, it is often skipped, and it is the difference between a wall and a sinkhole.
Can wall and landscaping be done together?
Usually, and it tends to work out cheaper. Get the levels agreed before either starts.