What we look for in Ashfield, and why it differs from the suburb next door. 8.1 km from the CBD, 15.7 km from the coast, postcode 6054.
Ashfield started as a small collection of railway houses beside the Midland line. Then in the late 1950s and early 60s came a boom of around four hundred homes, most built by the State Housing Commission. Then, in the late 1990s, something happened that matters more to a buyer than either.
The suburb was converted from septic tanks and leach drains to mains sewerage under the infill sewerage programme, alongside a Department of Housing revamp.
That conversion leaves traces. Old leach drains and disused septic tanks do not always get removed, they get decommissioned, and a filled or collapsed tank under a lawn is a genuine ground consideration. Where a property was connected, ask what was done with the old system, because abandoned tanks and drains sit in a lot of suburbs like this one.
There are three layers of housing. Original railway cottages. Around four hundred Commission homes from the late 1950s and 60s. And late 1990s infill from the redevelopment. Establish which you are in.
Ashfield Flats is the other defining feature, and it is the largest river flat remaining in metropolitan Perth. Genuinely low, seasonally wet ground bordering the Swan, so blocks toward it carry a high water table, drainage constraints and flood context.
The Midland line runs through a very small suburb, so a large proportion of properties sit near the corridor and carry noise and vibration.
River flat ground supplies permanent moisture, and Ashfield Flats is the biggest surviving example in the metropolitan area. That puts the low blocks at genuinely elevated pressure.
Decommissioned septic systems add something specific. An old leach drain keeps a patch of ground damper than its surroundings for years after it stops being used, and that is the sort of local wet spot a colony establishes on.
On the railway cottages and Commission stock the subfloor comes first where floors are timber, and access is frequently poor. Sixty and seventy year old gardens hold buried timber. Barriers on that stock stopped working decades ago and few were renewed.
Ground water explains findings in both reports here, and one assessment of how wet a block actually gets serves each. Reported under AS 4349.1 and AS 4349.3.
Ask what happened to the old septic system. On a suburb converted under the infill sewerage programme that is a fair question, the answer is knowable, and it affects both the ground and any future excavation.
Rail corridor properties benefit from condition records, since sustained vibration affects older masonry over years. Redevelopment continues, so we do handover inspections on new stock and staged inspections where a Commission house is being renovated.
If a property sits toward the Flats, look at it in winter. Ground that presents perfectly in February behaves quite differently after a wet month, and the wet version is the one being bought. Neighbours who have been through a few winters will tell you exactly how far the water comes up.
Ashfield sits on the Guildford Formation — alluvial clay and sandy clay laid down by the Swan and Canning systems. This is the reactive ground. Clay here shrinks and swells with moisture, which is what puts stepped cracking through brickwork and takes doors out of square between seasons. Articulation joints matter on these sites, and a great many older houses do not have them where a current standard would want them.
What that means in practice, on a house in Ashfield:
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.
Bassendean, Bayswater, Redcliffe, Embleton and South Guildford sit on the same ground as Ashfield, 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.
Ascot is 2.1 km away but sits on the Bassendean dune system. That is the useful thing about this part of Perth: the ground can change inside a few kilometres, and with it what an inspection is looking for.
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 Ashfield 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 15.7 km from the coast, out in Swan, Ashfield is far enough from the water that salt takes a back seat. The same fee goes into footings, drainage and the ground movement typical inland, and the tiled roof is checked for delignification only near heavy traffic.
Pre-purchase building inspection in Ashfield →
Building and pest inspection in Ashfield →
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 15.7 km inland, Ashfield 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.
PERTH