PVC pipe is a current example. Its price increase is real, but PVC is only one material within one trade package. When I price a Canberra home, I look at what each increase contributes to the whole project, what can be negotiated and where another reputable supplier or equally suitable product can provide better value.
Short answer
Canberra building costs are still rising, but a large increase in one product does not produce the same percentage increase in the total building price. Current ACT data shows genuine inflation, while weaker detached home activity is also creating more competition in some parts of the market.
Careful buying, realistic design decisions and a builder with lower operating overheads can offset part of the pressure. They cannot remove inflation, but they can limit how much reaches the client. For the other major influences on a project budget, read what affects building costs in the ACT.
Building cost inflation is real, but the pace has changed
National annual house construction price growth reached 20.5 per cent in September 2022, according to the Australian Bureau of Statistics. That period was exceptional, with supply interruptions, labour shortages and intense demand occurring together.
Prices have not returned to their earlier levels, but the rate of growth is no longer at that peak. The latest ABS Producer Price Indexes for June 2026 show ACT house construction prices rising 2.9 per cent during the quarter and 5.0 per cent over the year.
That is a meaningful increase and should be allowed for properly. It is not a reason to apply the largest percentage reported for one material to an entire home.
Why the PVC headline does not represent the whole build
PVC has received attention because petroleum costs, freight and international supply affect its price. The ABS identified those pressures in its June 2026 construction data. Even so, PVC pipe is one material within the plumbing package, and plumbing is one part of the total build.
A home also includes excavation, concrete, framing, roofing, windows, electrical work, plastering, joinery, waterproofing, tiling, painting, fixtures, supervision and approvals.
Consider a simple illustration. If one material represented 1 per cent of a project and its price rose by 30 per cent, its direct mathematical effect on the project would be about 0.3 per cent. The actual proportion differs between homes, and delivery, labour and supplier margins can add further pressure, but the principle remains.
Several increases occurring together can still be substantial, and fuel and freight affect many packages. My point is not that PVC or inflation should be ignored. It is that homeowners should understand the weighted effect on their complete project rather than one isolated percentage.
What I am seeing in the Canberra market
Canberra is not equally busy across every type of residential construction. The Housing Industry Association reported strong ACT multi unit commencements in the September quarter of 2025, while detached house starts remained near the very low level recorded a year earlier.
The following quarter was also uneven. Reporting based on ABS data showed ACT dwelling commencements falling to 859 in the December quarter of 2025. The Territory recorded 3,584 completions during 2025, which was 786 fewer than in 2024. The Property Council described this as a thinning construction pipeline.
This does not mean every supplier and trade is short of work. Some specialised trades remain busy. From what I am seeing while pricing detached homes and smaller residential projects, however, more suppliers and trades are willing to sharpen a quotation, discuss timing or offer alternatives than during the peak. Greater competition gives an active builder more room to negotiate.
How I try to contain cost increases
I do not see a builder's job as accepting the first price and passing every increase to the client. When I price and plan a project:
- I obtain competing quotations where the scope allows a fair comparison.
- I look beyond the same suppliers I have traditionally used while dealing only with reputable sources.
- I consider equivalent products when they meet the design intent, Australian requirements and suitable warranty standards.
- I plan purchasing and trade engagement early where that can reduce price or availability risk.
- I give trades clear drawings and scopes so they can price the work rather than allow heavily for uncertainty.
This is not about lowering quality. It is about remaining commercially alert. Better sourcing and negotiation cannot remove inflation, but they can reduce its effect.
Why the builder's overheads matter
The building company's cost structure also forms part of the price. Larger builders may provide buying power, display homes and large support teams. Those services can suit some clients, but their sales offices, display villages, advertising and administration must also be funded.
Ottimo Homes operates differently. Clients deal directly with me as the owner and builder. I do not maintain a display home network or a large corporate structure. Keeping the business lean gives me the opportunity to direct more attention, and potentially more of the client's budget, towards the home itself.
This does not mean every small builder will be cheaper or that the lowest quotation offers the best value. Experience, inclusions, site allowances, construction quality and supervision all matter. My guide to choosing the right builder in Canberra explains what homeowners should compare.
What homeowners should compare
Look beyond the final number in a building proposal.
- Confirm that each builder is pricing the same drawings, specification and scope.
- Check the inclusions, exclusions, prime cost items and provisional sums. Read what a clear building quote should include.
- Examine the site allowances. Slope, rock, retaining, access and services can influence the budget far more than one publicised material increase. Read more about Canberra site costs.
- Ask whether current supplier and trade prices have been tested rather than assumed.
- Understand who will manage the build and which business costs are included in the price.
A cheaper opening figure can become expensive when important items are missing. A well prepared price should show where the money is going and which amounts could still change.
My view as a Canberra builder
Building costs in Canberra have risen, and it would be misleading to suggest otherwise. I simply do not believe every dramatic material headline should be treated as an equal increase in the cost of a whole home.
The better response is to price the actual design, understand the weight of each cost, test the supplier and trade market, and keep the builder's overheads proportionate. That provides a clearer budget without lowering the standard of the finished home.
If you are considering a custom home in Canberra, a knockdown rebuild or a smaller residential development, speak directly with Alessandro about your plans and likely cost drivers.
View all building advice