Publicly reported builds: £26m for The Wave in Bristol, roughly AU$40m for URBNSURF Melbourne, CHF 15–20m for Alaia Bay in Sion. The spread isn't noise. It's depth, water volume, generation type and the wave each of them set out to build. This page takes the budget apart into its engineering pieces.
A single confident number quoted before the target wave, depth and generation type are fixed is marketing, not engineering. The budget becomes computable the moment those three are pinned down — because they set the machine power, the concrete volume, the water treatment and the electrical infrastructure. Everything below follows from them.
Excavation, the concrete shell, waterproofing and construction tolerances. Depth and width follow from the wave — every extra half-metre of depth is water you pay to hold, treat and push.
The machines, drives and control system. Machine count and installed power are set by target wave height and waves-per-hour — not by the brochure name of the technology.
Filtration and treatment for thousands of cubic metres, plus electrical infrastructure sized for generation peaks rather than average draw.
Beach zone, safety, buildings and everything guests touch. In full-facility projects like Bristol's 75-acre site, a real share of the budget lives here, not in the water.
Reported £26m; opened 2019; up to 1,000 waves per hour on a 75-acre site (BBC coverage).
Announced at AU$18.5m, construction started at AU$28.3m, final figure reported near AU$40m (industry press).
Reported CHF 15–20m; first surf pool in continental Europe; opened 2021 (industry press).
Figures are as reported in public press; full final budgets are rarely disclosed. Use them as scale, not as a quote.
The top recurring line is energy per wave — a calculated quantity, not a guess: it follows from the generation physics we break down on the artificial surf wave page. Water make-up and treatment run around the clock, and staffing scales with operating hours, not with how many waves are sold.
That's why wave-hour economics belongs in the engineering phase: a wave that costs too much energy per ride is a design error, and it's cheap to catch while the project is still a calculation.
Depth and basin volume — they set excavation, concrete, water and treatment together. Generation family — the four approaches move water differently and price differently. Target wave height and rate — power demand grows with both. And the bottom profile — it decides how much of the machine's energy actually becomes the wave you wanted.
None of these are procurement choices. They're physics commitments, and each one is checkable by calculation before it turns into concrete and invoices.
Melbourne's publicly tracked path — AU$18.5m announced, AU$28.3m at construction start, about AU$40m built — is what scope and geometry changes look like in a real project. Recalculating a bottom profile on paper costs a run; rebuilding it in concrete costs a season. A scale prototype of a contested element sits between the two — incomparably cheaper than reworking concrete. That's the whole argument for solving the design as one system before the concrete is poured. What each build stage makes permanent — on the wave pool construction page.
Publicly reported full-facility builds sit in the tens of millions: £26m in Bristol, roughly AU$40m in Melbourne, CHF 15–20m in Sion. Where a specific project lands is set by depth, water volume, generation type and the target wave.
The volume of water you have to move, and how often. Wave height and rate set generation power and machine count; depth and width set excavation, concrete and treatment volumes.
Not proportionally. Machines, controls, water treatment and power infrastructure don't scale down linearly — half the basin is not half the budget.
On changes made after the geometry is committed. Reworking a basin or bottom after concrete costs orders of magnitude more than recalculating it while the project is still on paper.
We don't build and we don't sell machines — we calculate. Send the wave you're aiming for, the site limits and the depth you're considering, and we'll tell you which of your decisions set the cost, and which of them a calculation can still make cheaper.