

Whether you're planning a full outdoor transformation or just looking for ideas to get started, you're in the right place.
The Landscape Garden Design blog covers everything from alfresco design and garden construction to practical advice for Melbourne's south east coastal conditions.
If you want an outdoor space that looks incredible and works for the way you actually live — this is your resource.



If your block slopes and you're not sure what to do with it — you're in the right place.
The Landscape Garden Design blog covers everything from retaining wall construction to tiered garden design, with practical insight built for the sloped and undulating blocks across Melbourne's south east coast.
If you want a site that works with its terrain instead of against it — this is your resource.

Retaining walls in Frankston and Mt Martha are not just an engineering requirement — they are one of the most effective landscaping tools available on a sloped block. Done well, a retaining wall system transforms what looks like a problem site into a series of usable, structured outdoor spaces. Done poorly, it is a liability that fails within a few years and costs significantly more to fix than it would have to do right in the first place.
Sloped blocks across the Mornington Peninsula corridor are common. The homes that make the most of them are the ones where someone made considered decisions about levels, materials, and drainage from the start.
A retaining wall is not just cosmetic. It is structural. It manages soil pressure, controls water movement across the site, and determines where usable flat space can exist. On a sloped block in Mt Martha or Frankston South, the retaining wall layout often shapes the entire landscape design — where the lawn goes, where the alfresco sits, how the garden is tiered.
Getting that foundation right is what determines whether the rest of the landscape holds together over time.
At Landscape Garden Design, we design and build retaining wall systems across Frankston, Mt Martha, Mornington, and the wider Peninsula that are engineered to perform and finished to look like a deliberate part of the overall landscape — not an afterthought bolted to a slope.
"On a sloped block, retaining walls are not one feature among many. They are the decision that shapes everything else."
View our retaining wall and landscaping services here: Find out more.
The right material depends on the site, the scale of the walls required, and the overall aesthetic of the landscape. Common options across Melbourne's south east include:
Concrete sleepers — durable, low maintenance, suited to walls that need to hold significant soil load. A reliable choice for functional retaining across most residential sites.
Natural stone and besser block — used where the wall is as much a design feature as a structural element. Suits the coastal and garden-influenced aesthetic common across Mornington Peninsula properties.
Timber sleepers — lower cost and appropriate for shallower walls in lower-load situations. Not suited to sites with significant water movement or walls above a certain height.
Every material has a right application. We specify based on what the site actually needs, not what's easiest to install.
Retaining wall costs vary based on wall height, length, material, and the engineering requirements of the site. In Frankston and Mt Martha, most residential retaining wall projects sit between $35,000 and $75,000, with larger or more complex tiered systems sitting above that range.
Walls above a certain height also require engineering certification in Victoria. Landscape Garden Design manages this as part of the build process.
Do I need a permit for a retaining wall in Victoria? In Victoria, retaining walls above 1 metre typically require a building permit. Walls near boundaries or on sites with specific soil conditions may have additional requirements. We manage all permits and engineering sign-off as part of the project.
How long do retaining walls last? Concrete sleeper walls, when properly installed with correct drainage, will last 40 to 50 years with minimal maintenance. Timber sleepers have a shorter lifespan and are typically suited to lower-load applications.
What areas do you service for retaining walls? We build retaining walls across Frankston, Frankston South, Langwarrin, Mt Martha, Mornington, Safety Beach, Dromana, and surrounding Mornington Peninsula suburbs.

© Copyright 2026. Landscape Garden Design.
All Rights Reserved.