What we look for in Jandakot, and why it differs from the suburb next door. 17.2 km from the CBD, 6.7 km from the coast, postcode 6164.
Jandakot holds two records. Its airport sits within the suburb. By aircraft movements it is the busiest general aviation airport in Australia. Busy, but light. And Jandakot records the lowest temperatures in metropolitan Perth, having hit minus three point four degrees and dropping below freezing regularly through winter.
The frost is not a curiosity. It has building consequences that most of Perth never has to think about.
Repeated freezing affects exposed plumbing, external fittings and anything holding water overnight. It drives heavier condensation inside a building, particularly where insulation is thin or ventilation is poor, and condensation in a roof space or against a cold wall does the same thing a leak does, just more slowly.
So on a Jandakot property, insulation coverage, roof space ventilation and the condition of external plumbing are worth more attention than they would get in a warmer suburb four kilometres away.
The airport is general aviation rather than jets, which matters. Light aircraft, training circuits and helicopters produce a different noise pattern from an airliner. Frequent, lower, and concentrated around circuit paths and training hours. Some people barely register it. Others find it constant. Go and listen at a weekend morning before deciding.
Airport and associated industrial land occupy much of the suburb, so establishing what actually adjoins a property matters. Flat sandy coastal plain drains freely, though low ground near the former lake system holds water.
Free draining sand keeps general termite pressure moderate. What raises it here is where water sits rather than what the soil is.
The frost angle applies again, oddly enough. Where condensation forms repeatedly against cold surfaces or in a poorly ventilated roof space, that moisture is doing the same job a plumbing leak would, and sustained damp in a concealed cavity is what a colony needs.
Low ground near the wetland system holds water year round.
On established houses, whatever barrier went in at construction has finished its working life. Gardens have buried the slab edge under paving and beds in most cases. Where a property adjoins airport or industrial land, stored materials and disused structures on the neighbouring parcel are habitat outside an owner's control.
Ventilation and moisture drive findings on both sides of the report here, and one assessment of the roof space and the perimeter serves each. Reported under AS 4349.1 and AS 4349.3.
Ask about winter. Not the weather generally, but what happens in this specific house on a cold morning. Owners who have been through a few know whether the windows run, whether a room stays cold, and whether anything freezes.
Establish what adjoins the property before committing, since airport and industrial land take up much of the suburb. Aviation businesses, hangars and maintenance operations all sit within it.
Where building work is happening nearby, a condition record beforehand is worth having. And on any house here, ask about insulation coverage specifically. In the coldest suburb in the metropolitan area it does more work than it does elsewhere.
Jandakot sits on the Spearwood dune system — residual yellow and grey sand over a Tamala Limestone core, with the rock often close to the surface. Limestone near the surface makes for stable footings and expensive excavation. Where the rock is shallow, older houses often sit directly on limestone footings, and those are the ones to look at for rising damp and salt damp at the base of the wall.
What that means in practice, on a house in Jandakot:
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.
South Lake, Cockburn Central, Bibra Lake, Treeby and Atwell sit on the same ground as Jandakot, 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.
Leeming is 3.1 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 Jandakot 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 →
6.7 km inland through Cockburn, Jandakot sits between the coastal and inland problems, and the fee reflects it — some salt-corrosion checking on an older tiled roof, but more attention to drainage, wet areas and ground movement across the Cockburn area.
Pre-purchase building inspection in Jandakot →
Building and pest inspection in Jandakot →
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.
Jandakot is 6.7 km from the coast — outside the highest-exposure band, but close enough that salt-driven delignification is worth checking in an older tiled roof.
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