What Does a Landscape Constructor Do? Paving, Walls, Irrigation and the Certificate III
Landscape constructors build the hard and soft parts of outdoor spaces: paving, walls, steps, decks, drainage, irrigation and planting. This guide explains the work and how the Certificate III in Landscape Construction fits.

A trade of hard and soft works
The national description of AHC30921 covers trade-level roles in the landscape industry, working under broad supervision with discretion in selecting and operating equipment, coordinating resources and applying contingency measures. Hard works include paving, retaining walls, edging and timber structures; soft works include soil preparation, turf and planting.
Reading the design and the ground
Landscape plans show levels, falls, materials and plant schedules, but the site always has the final say. Constructors check levels, drainage paths and soil conditions, and raise concerns where a wall height, footing or fall may need engineering or design input. Water has to go somewhere, and poor drainage is one of the most common causes of failed paving and walls.
Review design
Levels, falls, materials and approvals.
Locate services
Before any excavation.
Earthworks & drainage
Excavate, set falls, install drainage.
Hard works
Walls, paving, edging and structures.
Irrigation & soil
Install systems and prepare soil.
Soft works & handover
Plant, turf, clean up and maintenance advice.
A general order of works. Each design, site and council requirement may change it.
Working safely outdoors
Landscape work involves small plant, power tools, manual handling of heavy materials, cutting masonry and stone, sun and heat exposure, and underground services. Cutting concrete, pavers or stone can release crystalline silica dust, so controls such as water suppression and on-tool extraction come first, with suitable respiratory protection as an additional, not a substitute, control. Locating services before digging is essential.
Some tasks, such as certain retaining wall heights, plumbing-connected irrigation or work on structures, can attract approval or licensing requirements depending on the state or territory and council.
Where the qualification fits
OnShift's course is presented on its course page for workers already building landscapes who want a nationally recognised trade qualification. Speak with an adviser to confirm how the course is delivered, what evidence you may need and whether it suits your experience. A qualified assessor decides competency.
Licensing note from the national register
State or territory licensing, legislative or certification requirements apply in some jurisdictions. Check with the relevant regulatory authority.
Official sources
- AHC30921 Certificate III in Landscape Construction (training.gov.au) (opens in a new tab)
- Crystalline silica (Safe Work Australia) (opens in a new tab)
- RTO 41304 scope of registration (training.gov.au) (opens in a new tab)
Qualification status, descriptions, licensing notes and RTO 41304's scope (which lists AHC30921 as deliver and assess) were checked on training.gov.au on 29 October 2026. Scope shows approval to deliver, not that a particular intake is running.