What we look for in Girrawheen, and why it differs from the suburb next door. 12.6 km from the CBD, 8.0 km from the coast, postcode 6064.
Girrawheen was gazetted in 1970 and, with Koondoola, was where Wanneroo's growth started. That makes it among the oldest stock in the district. Fifty years plus. It was predominantly public housing at establishment and still carries a significant social housing component.
Early 1970s single detached houses on seven to eight hundred square metre lots. Fifty years old. That puts them between a first and second maintenance cycle, which is the awkward middle where some things have been done once and are now due again.
Services original or through a single ageing replacement. Concrete tile roofs of that era needing their fixings and roof plumbing assessed. Wet area waterproofing well past a second cycle. Asbestos era materials likely in anything unrenovated, which on stock of this vintage is a great deal of it.
Affordability has shaped what has happened since. These houses have been renovated and extended repeatedly over five decades, frequently by owners doing their own work, so additions need tracing for approval rather than assuming. A patio, a carport, a back room, a converted garage. Each one is a junction and a potential approval gap.
There is a high rental and investor share alongside the social housing, which brings deferred maintenance and wear that runs ahead of the building's age.
The suburb is very multicultural, with around fifty cultural groups represented. Eighteen kilometres inland, so salt and delignification are a low priority.
Tenure matters more here than the age of the building. That is the short version. Where the occupant does not own the house, a leaking shower or a blocked downpipe runs for months rather than days, and sustained damp is what makes a property attractive to a colony.
Additions are the other factor. There are a great many of them. Patios and carports built hard against walls cover the slab edge along their whole length, which removes exactly the junction we need to see. A converted garage puts new wet areas and plumbing into a structure that was never designed for them.
Fifty year old gardens hold buried timber and old stumps. None of it is visible. Whatever barrier went in at construction stopped working decades ago, and on stock with this tenure history very few were ever replaced.
On tenanted property arranging access is the awkward part of any inspection, and doing it once for both assessments saves real time. Reported under AS 4349.1 and AS 4349.3.
Ask for the approval history on anything that has been added. On stock with this record, patios and rooms went up without paperwork more often than not, and the gap becomes the buyer's problem at resale rather than the seller's.
Investor purchases make the final inspection before settlement worth booking, since a furnished occupied house and an empty one can look like different properties. Subdivision on the generous lots brings condition records for the original dwelling during excavation next door. On a fifty year old house beside heavy earthworks, that record is worth having before anything starts rather than after cracking appears.
Girrawheen holds some of the oldest Wanneroo stock, early 1970s, much of it originally public housing, and that era and build type set the inspection: concrete-tile roofs, original wiring and plumbing now fifty years old, and ex-Homeswest builds with their own construction patterns. There is a high rental, investor and social-housing share, so deferred-maintenance and DIY-addition findings are common, and because the affordable stock has been heavily renovated and extended over decades, there are usually additions to trace and assess for approval and workmanship.
That combination — genuinely old fabric, deferred maintenance, and layers of owner additions — is the recurring Girrawheen picture, and it is exactly the sort of thing an inspection is for, because the work does not follow a catalogue and has to be read on its own merits. Eighteen kilometres inland, salt and delignification are low priority. A Girrawheen inspection weights toward the fifty-year-old services, the ex-public-housing construction, and the additions and deferred maintenance that the suburb's rental-heavy history has left across its stock.
On a Girrawheen home the inspection reads genuinely old services and layered additions. The switchboard and wiring are typically fifty years old and a rewire is a real cost, the plumbing is near end of life, and the concrete-tile roof's fixings and pointing want checking. On ex-Homeswest stock the construction patterns of that era are read as they present. The additions that decades of affordable-stock renovation have produced are traced for approval and for the workmanship owner-era work varies in, and on tenanted homes the deferred maintenance is documented. Eighteen kilometres inland, salt is not a factor, so the emphasis stays on the aged fabric and the additions.
None of it is guesswork. Reading the stock above into an inspection, these are the checks the Girrawheen pattern pushes to the top of the list:
Girrawheen 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 Girrawheen:
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.
Marangaroo, Balga, Warwick, Hamersley and Westminster sit on the same ground as Girrawheen, 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.
Koondoola 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 Girrawheen 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 →
8.0 km inland through Wanneroo, Girrawheen is off the worst of the coastal strip, so the fee spreads wider: an older tiled roof still gets checked for salt corrosion, but drainage, the wet areas and the way the Wanneroo ground moves take up more of the visit.
Pre-purchase building inspection in Girrawheen →
Building and pest inspection in Girrawheen →
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.
Girrawheen is 8.0 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