The Property Plug holds real siteworks pricing for 102 Perth suburbs. As at June 2026, siteworks alone range from $20,636 to $37,107, a spread of $16,471 on otherwise identical builds. Add that to a $333,900 base design and the same four-bedroom home lands anywhere from $354,536 to $371,007, before land.
Every Perth builder advertises a "from" price. None of them publish what the build actually costs in your suburb, because the part that moves the number most is the part they cannot quote until they see your block. We can. This is the first cross-builder look at the real landed cost to build, suburb by suburb, using our own siteworks dataset.
What our siteworks dataset shows
The Property Plug prices 46 designs against the real siteworks figure for 102 Perth suburbs. Siteworks is the cost of making a specific block ready to build on: soil testing and classification, sand pad or fill, retaining, rock and clay allowances, drainage, and service connections. It is the single biggest reason two buyers on the same design pay different totals.
Across our 102 suburbs, siteworks runs from a low of $20,636 to a high of $37,107. The median sits at $23,056. That is a $16,471 swing driven entirely by location, before a single upgrade or a dollar of land. A from-price that ignores this is not wrong so much as incomplete.
The same home, six suburbs, six prices
Take one entry-level four-bedroom design at a $333,900 base build price. Hold the design, inclusions and builder identical, and change only the suburb. The all-in figure below moves by $16,471 from the cheapest corridor to the dearest, purely on siteworks. That gap is the number a single builder cannot show you.
The table fixes the design and varies the suburb. The "siteworks" column is our real per-suburb figure as at June 2026. The "all-in build" column is the base build plus that siteworks figure. Land is excluded, because land is bought separately and priced per lot.
| Suburb | Base build | Real siteworks | All-in build |
|---|---|---|---|
| Atwell | $333,900 | $20,636 | $354,536 |
| Canningvale | $333,900 | $20,963 | $354,863 |
| Neerabup | $333,900 | $23,056 | $356,956 |
| Dudley Park | $333,900 | $25,675 | $359,575 |
| Darling Downs | $333,900 | $30,201 | $364,101 |
| Bullsbrook | $333,900 | $37,107 | $371,007 |
Read the top and bottom rows together. The advertised from-price is the same in both. The likely build cost is not. A buyer comparing Atwell and Bullsbrook on headline price alone would budget for an identical home and be $16,471 out before they started.
IndicativeEstimate only, not a quote or an offer. Figures combine a home design starting price with the suburb siteworks and do not include land. Designs, builders, land and pricing change and are subject to availability. We confirm a fixed price with your matched builder on enquiry.
What actually drives the siteworks gap
Siteworks is geology and infrastructure, not branding. The pattern in our data is consistent with how Perth was built. Five factors move the figure most:
- Soil class. Stable sand pads on the coastal plain test cheaply. Reactive clay and sites needing engineered footings cost more.
- Slope and fill. Flat lots are cheap to prepare. Hills and gradient lots need cut, fill and retaining, which is where the dearest figures appear.
- Retaining and rock. Retaining walls and rock excavation are priced by the metre and the cubic metre. A sloping or rocky block can add five figures on its own.
- Service connections. Established suburbs with services at the boundary connect cheaply. Fringe and new-estate lots can carry headworks and longer runs.
- Sand pad depth. Low-lying coastal lots may need a deeper imported sand pad to reach the build platform height, which adds cartage and compaction.
In our dataset the cheapest corridors are flat, established, sand-based suburbs, with Atwell sitting at the floor at $20,636. The dearest are hill and Swan Valley locations, with Bullsbrook at $37,107 on slope, fill and retaining. The geography explains the price better than any builder's brochure.
How to read a "from" price honestly
A from-price is the base build cost for that design's standard inclusions. It is a real number and a useful one, but it is the start of the sum, not the end. To get to what you will actually pay, you add the items below. Run this checklist against any builder's headline figure.
- Siteworks for your specific suburb and block. This is the figure in our table, and the one most quotes leave for later.
- Land, bought separately and priced per lot in your suburb.
- Stamp duty and headworks where they apply, plus any estate or developer requirements.
- Upgrades beyond the standard inclusions, from flooring to facades.
Our new home designs start at $309,218 and run to $535,929 for the build. We publish the from-price and the suburb siteworks figure side by side, so the landed number is visible before you enquire, not after. We are paid by the builder, never by you.
Figures are The Property Plug's own siteworks data for 102 Perth suburbs as at June 2026, applied to a representative entry-level four-bedroom design at a $333,900 base build price. Siteworks figures are indicative and confirmed per block on a real contour and soil report. Land is excluded throughout.
See the real number for your suburb
This dataset powers every suburb page on the site. See all 102 suburbs ranked in the Perth Build-Cost Index, pick your suburb to see its real siteworks figure and an indicative build estimate, browse the eligible designs for your frontage, or read how siteworks works in plain English. First-home buyers should pair this with the grants guide before setting a budget.