What we look for in Shelley, and why it differs from the suburb next door. 8.8 km from the CBD, 12.5 km from the coast, postcode 6148.
Much of Shelley is not original ground. A 1960 reclamation scheme filled about a mile and a half of foreshore swamp along the Canning River between Corbel Street and Beatrice Avenue. The suburb was named for the shells found on that shore, and until the mid 1960s it was part of Riverton.
Reclaimed land is the first thing to understand here. Fill, not natural ground. Fill placed over former river swamp is made ground. Made ground settles. Beneath it sits organic material and soft estuarine soils that were never intended to carry buildings, and the water table can be high and variable.
So on a Shelley block, slab movement and wall cracking deserve to be taken seriously rather than waved away as normal settlement. Site classification matters more here than in a suburb built on undisturbed sand, and asking what a particular parcel was before 1960 is a fair question. Where a large modern home has been built on reclaimed ground, how the site was prepared matters more than anything above it.
River frontage brings flood context and subfloor damp on low blocks. Desirable riverside land value drives knock down rebuild, so original 1960s homes sit beside new two storey builds, and the two are entirely different inspections. On the new ones the finishes are usually good and the drainage and waterproofing behind them still need checking.
Being on the river rather than the coast, salt and delignification are a low priority here.
Fill over swamp is a specific concern for termites, and it is worth being direct about why. Reclamation fill frequently contains buried organic material and timber, and buried timber sitting in permanently damp fill is ideal for a subterranean colony to establish on. None of it is visible, and none of it can be removed.
The high water table compounds it, because moisture is the limiting factor for colony activity and here it is supplied continuously rather than by accident. On low blocks a subfloor can be damp enough to make inspection awkward, and we report where access stopped.
On slab built homes the perimeter and slab edge are the focus. On the newer rebuilds there should be a durable notice recording the termite management system, so find it and then check whether the landscaping installed afterwards has buried the slab edge.
Made ground and groundwater drive both inspections here, which makes splitting them wasteful. The same assessment of what the site is sitting on informs the structural findings and the pest ones. One attendance gives one account. Reported under AS 4349.1 and AS 4349.3.
Rebuilding on reclaimed river land makes building stage inspections genuinely valuable, because site preparation, fill compaction and subsoil drainage are covered over early and cannot be reviewed afterwards without excavation.
Practical completion inspections follow at handover. Dilapidation reports apply where excavation happens beside an established house on fill, which is exactly the circumstance where a dated record is worth having. We also do pre-settlement inspections and expert witness reports, which here commonly concern slab movement.
Shelley sits on the Bassendean dune system — deep leached grey quartz sand, almost pure, and very free draining. Bassendean sand is about as unreactive as a building site gets, so seasonal footing movement is rarely the story here. The water table is the story. Parts of this system sit over the Gnangara Mound and the standing water level can be within a couple of metres of the surface.
What that means in practice, on a house in Shelley:
Landform is assigned from the suburb's position on the Swan Coastal Plain rather than from a site soil test. It tells you what to expect, not what you have. A site classification to AS 2870 is a different exercise and a different report.
Shelley Foreshore Reserve is the fixed point most people in Shelley navigate by. Buildings like it are useful to an inspector for a duller reason: they date the area. Whatever era put that up is usually the era that put up the houses around it, and the construction methods of that decade are what we expect to find in the roof.
Riverton, Waterford, Karawara, Wilson, Willetton and Rossmoyne sit on the same ground as Shelley, so the footing behaviour and the drainage problems tend to repeat across all of them. If you are comparing houses across those suburbs, you are largely comparing the same site conditions.
On site classification: any soil zone quoted for a suburb is indicative, inferred from geography rather than surveyed. A real AS 2870 classification comes from geotechnical work on your actual block and can differ from the one next door. We report what we observe; we do not read your soil class off a map.
The inspection is visual and non-invasive, over the readily accessible areas, reported to AS 4349.1. Our inspectors physically enter the roof space, as long as there is sufficient access. Report within 24 hours of the inspection.
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Flat fee, the same in Shelley as anywhere: $440 inc. GST for a pre-purchase building inspection, or $616 inc. GST with the timber pest scope added in the same visit. Full price list →
Well inland at 12.5 km from the coast, out in Canning, the inland setting changes what the fee buys in Shelley: footing and slab movement, drainage and the reactive soils of the South East belt come first, and coastal delignification is a lower priority away from the arterial corridors.
Pre-purchase building inspection in Shelley →
Building and pest inspection in Shelley →
Yes. Our inspectors physically enter and inspect the roof space, as long as there is sufficient access to do so safely. Where access is restricted, the report says so plainly rather than implying we saw more than we did.
At 12.5 km inland, Shelley carries lower coastal-salt exposure, so delignification is not the first thing we would expect. It remains possible near heavy arterial corridors or industrial emissions.
Within 24 hours of the inspection itself, not 24 hours from booking. On a pre-purchase or pre-settlement job that timing is the whole point, because your leverage disappears once you are committed.
We would rather you checked than took our word for it. These are the bodies that actually hold the records and set the rules:
Tell us about the property and what you need. We'll come back to you with a firm quote and a time.
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