Do Landscapers Need a Licence in South Australia?

When hiring a landscaper in Adelaide, one of the most important questions to ask is whether they hold the appropriate licences for the work they will be performing. The answer is not straightforward—some landscaping work requires a building licence while other work does not. Understanding the distinction protects you from substandard work, insurance issues, and potential legal liability.

For guidance on selecting a qualified landscaper, our comprehensive guide to choosing a landscaper covers credentials, questions to ask, and red flags to watch for.

When Is a Licence Required?

In South Australia, landscaping work that constitutes “building work” under the Building Work Contractors Act 1995 requires the contractor to hold a current building work licence issued by Consumer and Business Services (CBS). The following landscaping activities are classified as building work and require a licence:

Retaining walls over 1 metre high: Any retaining wall exceeding 1 metre requires both a licensed builder and development approval
Structural work: Construction of pergolas, carports, gazebos, and other structures attached to or adjacent to buildings
Decking above a certain height: Elevated decking that constitutes a building structure
Pool installation: Swimming pool construction and associated structural work
Any work valued above $5,000: Building work with a total value exceeding $5,000 must be carried out by a licensed building work contractor

When Is a Licence Not Required?

Many common landscaping activities do not require a building licence:

Garden design and planting
Lawn installation (turf and seeding)
Mulching and garden bed preparation
Irrigation system installation (unless it involves plumbing that connects to mains supply)
Paving and path construction (unless structural)
Small retaining walls under 1 metre high (though best practice standards should still be followed)
Fencing up to standard heights
Garden maintenance, pruning, and lawn care

However, even for work that does not strictly require a licence, hiring a professional who carries appropriate insurance (public liability and workers’ compensation) is essential. If an unlicensed, uninsured worker is injured on your property, you may be liable.

Types of Relevant Licences

Several licence types may be relevant to landscaping work in South Australia:

Building Work Contractor’s Licence

Required for any building work over $5,000. The licence specifies the scope of work the holder is permitted to undertake. Some landscapers hold a general builder’s licence, while others hold a restricted licence for specific types of work.

Plumbing Licence

Required if the landscaping work involves connection to mains water supply, gas lines, or sewer systems. Irrigation work that connects to mains water should be performed or supervised by a licensed plumber.

Electrical Licence

Required for any electrical work, including garden lighting installation that connects to mains power. Low-voltage (12V) landscape lighting does not require an electrical licence.

How to Verify a Landscaper’s Credentials

Before engaging any landscaper for significant work in Adelaide, verify their credentials:

Check their licence: Search the CBS public register at sa.gov.au to confirm the licence is current and covers the type of work proposed
Request proof of insurance: Ask to see certificates of currency for public liability insurance ($5–20 million is standard) and workers’ compensation insurance
Check industry memberships: Membership of Landscaping Australia (formerly AILDM) or Master Landscapers SA indicates professional commitment
Ask for references: A reputable landscaper will happily provide references from recent Adelaide projects
Written contract: Any work over $5,000 requires a written contract by law. Even for smaller jobs, a written quote and scope of work protects both parties

For detailed advice on what to look for, see our guide on how to choose a landscaper.

What About Retaining Walls?

Retaining walls deserve special attention because they are one of the most common landscaping elements that cross into licensed building work territory. In South Australia:

Retaining walls under 1 metre high generally do not require development approval or a licensed builder (though some councils have stricter requirements)
Retaining walls over 1 metre high require both development approval and construction by a licensed contractor
Engineering certification may be required for walls above certain heights or in certain soil conditions
Walls that support structures, driveways, or are near boundaries may have additional requirements regardless of height

For more on retaining wall regulations, see our detailed guide on retaining wall council approval requirements.

Risks of Using Unlicensed Contractors

Using an unlicensed contractor for work that requires a licence carries significant risks:

No statutory warranty: Licensed builders must provide statutory warranties on their work. Unlicensed work has no such protection
Insurance issues: Your home insurance may not cover damage resulting from unlicensed building work
Fines: Both the contractor and, in some cases, the homeowner can face penalties for unlicensed building work
Quality concerns: Licensed contractors must demonstrate competency to obtain their licence. Unlicensed operators have no such requirement
Resale issues: Non-compliant building work can create problems when selling your property

Insurance Requirements for Landscaping Work

Even when a formal building licence is not required for the landscaping work being performed, insurance remains critically important. Two types of insurance are particularly relevant for landscaping work in Adelaide:

Public liability insurance covers damage to your property or injury to third parties caused by the landscaper’s work. If an uninsured landscaper damages your home, neighbour’s property, or underground services during excavation, you could be left to cover the costs yourself. Industry standard coverage in Adelaide is $5–20 million, with $10 million being the most common.

Workers’ compensation insurance is required by law for any business with employees in South Australia. This covers workers injured on the job. If an uninsured worker is injured on your property, you could face significant legal liability. Always confirm that the landscaper’s workers’ compensation insurance is current before work begins.

Ask to see certificates of currency—not just policy numbers—before any work commences. A reputable landscaper will provide these without hesitation. If they cannot or will not provide proof of insurance, do not proceed.

Professional Qualifications and Industry Standards

Beyond licensing, several professional qualifications and industry memberships indicate a landscaper’s commitment to quality and professionalism.

Certificate III in Landscape Construction (or equivalent) is the minimum trade qualification for landscape construction. This covers earthworks, paving, retaining walls, drainage, and irrigation installation.

Certificate III in Horticulture focuses on plant knowledge, soil science, and garden establishment—important for landscapers who handle garden design and planting as well as construction.

Diploma of Landscape Design qualifies the holder to design landscapes and prepare construction documentation. Not all landscapers are qualified designers, and not all designers are qualified constructors—understanding this distinction helps you engage the right professional for your project.

Landscaping Australia membership (formerly the Australian Institute of Landscape Designers and Managers) requires members to meet qualification, insurance, and professional development requirements. Membership is a positive indicator of professionalism.

When engaging a landscaper for work that involves structural elements—retaining walls, decking, pergolas, or other structures—verify that they hold appropriate qualifications and licensing for those specific elements, even if the overall project includes elements that do not require a licence.

What to Do If Something Goes Wrong

Despite careful selection, sometimes landscaping projects encounter problems. Knowing your rights and the appropriate channels for resolution is important. If you are dissatisfied with the quality of work performed by a licensed contractor, your first step should be to raise the issue directly with the landscaper in writing, clearly describing the problem and the outcome you expect. If the issue cannot be resolved directly, licensed building work is subject to statutory warranties under South Australian law, providing protection for defective workmanship. You can lodge a complaint with Consumer and Business Services (CBS) if a licensed contractor fails to meet their obligations. CBS can investigate complaints, mediate disputes, and in serious cases, take disciplinary action against the licence holder. For disputes involving unlicensed work, your options are more limited—you may need to pursue the matter through the South Australian Civil and Administrative Tribunal (SACAT) or a court. This is one of the strongest reasons to always engage licensed contractors for work that requires a licence: the regulatory framework provides meaningful consumer protection that does not exist for unlicensed work.

Find Qualified, Licensed Landscapers

Navigating licensing requirements should not be your burden as a homeowner. Get matched with qualified, appropriately licensed Adelaide landscapers through our service, where all professionals are verified for relevant licences, insurance, and credentials before being recommended to homeowners.