Retaining Wall Cost in Canberra
How to read the table
Every row below is a published figure with its source, its unit and the date we read it. They are guides, not Canberra quotes. They measure different things, so do not mix a per-square-metre rate from one source with a per-job figure from another. Wall prices are quoted per square metre of face, which is the length multiplied by the exposed height, and Yakka Labour assumes walls up to about 1.2 metres on a site where a small excavator can get in.
What moves the price
Yakka Labour says height, soil, drainage, excavation and spoil removal, access, engineering and approval all drive the final cost. It adds that taller walls cost more per square metre, not just in total, because the footing gets bigger and an engineer has to design the wall. Karven says soil pressure climbs fast with height, so a 2 metre wall needs far more than twice the structure of a 1 metre wall.
Where the money goes
Yakka Labour's worked examples add excavation, drainage and certifier fees to the wall itself, and for a steep block with a wall over one metre it puts groundwork, engineering and approval at about 70 per cent on top. Karven's example of a 12 metre wall at one metre high comes to about $8,300 including drainage, footings and labour. Both say the figure depends on access and ground conditions.
Canberra figures and rules
Yakka Labour's city table lists Canberra at $400 to $630 per square metre for a concrete sleeper wall under one metre, citing higher labour rates and frost that affects concrete timing. ACT Planning says design and construction standards apply to a wall higher than 1.2 metres, which is the point where extra design cost may arrive. The ACT building approval page and the development approval page are the places to check.
Ask for a full list
Contact Retaining Walls Canberra to discuss the work and request a free quote.
Scroll the table sideways to see all columns.
| Treated pine sleeper wall | AUD $250–$450 per m² of wall face, Australia | Yakka Labour: retaining wall cost per m2 in Australia, 2026 guide (read 31 October 2026) Yakka Labour's installed band for treated pine sleepers on timber posts, under about 1.2 m on an accessible site |
|---|---|---|
| Concrete sleeper wall with steel posts | AUD $350–$650 per m² of wall face, Australia | Yakka Labour: retaining wall cost per m2 in Australia, 2026 guide (read 31 October 2026) Yakka Labour's installed band for concrete sleepers on galvanised steel posts |
| Concrete sleeper wall, Canberra | AUD $400–$630 per m² of wall face, Canberra | Yakka Labour: retaining wall cost per m2 in Australia, 2026 guide (read 31 October 2026) Yakka Labour's city table for a wall under 1 m high with standard drainage, excluding major excavation |
| Interlocking segmental block wall | AUD $450–$850 per m² of wall face, Australia | Yakka Labour: retaining wall cost per m2 in Australia, 2026 guide (read 31 October 2026) Yakka Labour's installed band, suited to curves, terraces and taller walls with geogrid |
| Core-filled concrete block wall | AUD $550–$1000 per m² of wall face, Australia | Yakka Labour: retaining wall cost per m2 in Australia, 2026 guide (read 31 October 2026) Yakka Labour's installed band for reinforced core-filled block |
| Sandstone block wall | AUD $600–$1200 per m² of wall face, Australia | Yakka Labour: retaining wall cost per m2 in Australia, 2026 guide (read 31 October 2026) Yakka Labour's installed band for feature walls |
| Excavation and spoil removal | AUD $60–$150 per m³, Australia | Yakka Labour: retaining wall cost per m2 in Australia, 2026 guide (read 31 October 2026) Yakka Labour's range for machine excavation plus truck or skip disposal, depending on access, soil and tip fees |
| Drainage behind the wall | AUD $40–$100 per linear metre, Australia | Yakka Labour: retaining wall cost per m2 in Australia, 2026 guide (read 31 October 2026) Yakka Labour's range for slotted pipe, geofabric, gravel and an outlet, more if a plumber connects to stormwater |
| Engineer's design | AUD $800–$3000 per wall, Australia | Yakka Labour: retaining wall cost per m2 in Australia, 2026 guide (read 31 October 2026) Yakka Labour's usual range for a residential retaining wall design |
| Approval fees | AUD $500–$2500 per wall, Australia | Yakka Labour: retaining wall cost per m2 in Australia, 2026 guide (read 31 October 2026) Yakka Labour says council or certifier approval can add this or more, and approval rules differ by state |
| Treated timber sleeper wall | AUD $250–$450 per m² of wall face, Australia | Karven: retaining wall cost in Australia, 2026 price guide (read 31 October 2026) Karven's installed band for low garden walls |
| Besser or core-filled block wall | AUD $450–$800 per m² of wall face, Australia | Karven: retaining wall cost in Australia, 2026 price guide (read 31 October 2026) Karven's installed band for taller structural walls |
| Natural rock or sandstone block wall | AUD $500–$1000 per m² of wall face, Australia | Karven: retaining wall cost in Australia, 2026 price guide (read 31 October 2026) Karven's installed band, which it says can go higher for feature stone |