What we look for in Mullaloo, and why it differs from the suburb next door. 22.1 km from the CBD, 0.6 km from the coast, postcode 6027.
Mullaloo began developing in the late 1950s, which makes its coastal origins genuinely older than most of the northern suburbs around it. Substantial growth followed in the 1970s and 80s. Then something unusual happened, or rather stopped happening.
The population has slipped slightly since the mid 1990s, and the reason is that the property stock barely changed. Around ninety one per cent is detached housing and very little new has been built. So Mullaloo is an ageing, stable suburb of houses that have not been replaced.
That is the practical point. In a suburb where redevelopment is constant, buyers can assume some proportion of stock has been renewed. Here they cannot. A house is far more likely to be original, with services either original or into a single ageing replacement, and wet area fabric well past a second cycle.
There is a clear split within the suburb too. Mullaloo Heights sits elevated while Mullaloo Beach is frontline, so slope and exposure differ substantially depending on where a block sits. The Heights bring retaining and down slope drainage. The Beach brings the full salt load.
With ocean frontage, delignification is a serious check on any original tiled roof, and on stock of this age that describes most of it. Corrosion works steadily on fixings, flashings and external metalwork.
Static stock means static protection. Where houses have not been rebuilt or substantially renovated, the original chemical barrier is not just expired, it has usually never been replaced by anything.
Coastal dune sand keeps general pressure moderate. The exposures are specific. Sixty and seventy year old gardens hold buried timber and old stumps. Retaining on the Heights blocks puts timber in ground contact and holds damp soil against structure.
Reticulation running for decades creates persistently damp pockets in free draining sand, usually against a wall or under a patio. On a house that has never been renovated, the slab edge or subfloor access is generally buried under paving and beds added over half a century.
On an original unmodified house the roof and the perimeter answer both inspections, and there is no renovation history to untangle separately. One attendance covers it. Reported under AS 4349.1 and AS 4349.3.
Ask what has actually been replaced. In a suburb where stock barely turns over the honest answer is frequently very little, and that shapes the next ten years of cost more than anything else about the property. Price the work, not the presentation.
Long held homes are now beginning to turn over, which makes the final inspection before settlement worth booking, since a house lived in for forty years presents differently once empty. Where a rebuild does happen, condition records matter for the older house next door.
The Heights and the Beach are really two suburbs. Establish which one a block sits in. Slope and exposure are the two things that differ most, and both cost money over time.
Development in Mullaloo began in the late 1950s, giving it genuinely older coastal origins than most northern suburbs, followed by 70s-80s growth, so it is an older-than-it-looks northern beach suburb. Tellingly, the population declined since the mid-90s because the stock barely changed, which means a lot of original fabric persists — homes that have not been redeveloped and so carry their original services, roofs and wet areas well past intended life. That persistence of original fabric is the recurring Mullaloo picture, and it weights the inspection toward genuinely aged stock rather than renewed homes.
The suburb splits between Mullaloo Heights, which is elevated, and Mullaloo Beach on the frontline, so slope and exposure differ across it: the Heights bring cut-and-fill and drainage considerations while the beachfront takes the direct salt. With ocean frontage, salt is a real factor — wall-tie corrosion, mortar attack, roof-timber breakdown, and delignification on older tiled roofs. A Mullaloo inspection reads the older-than-it-looks, largely un-redeveloped stock with its persistent original fabric, then weighs the difference between the elevated Heights and the exposed beachfront, with coastal salt as a genuine factor across the suburb.
On a Mullaloo home the persistence of original fabric shapes the inspection, since so much of the stock was never redeveloped: the services, roof and wet areas are frequently genuinely at end of life rather than renewed, and we read them as replacement items. On the elevated Mullaloo Heights blocks the slope drives checks on cut-and-fill, retaining and drainage, while the Mullaloo Beach frontline takes the direct salt, so wall ties, exposed metal, gutters and flashings are read hard and any older tiled roof gets a batten check for delignification. Establishing where on the slope-to-shore gradient a house sits tells you which set of concerns leads.
None of it is guesswork. Reading the stock above into an inspection, these are the checks the Mullaloo pattern pushes to the top of the list:
Mullaloo sits on the Quindalup dune system — young calcareous sand, still mobile in places, and thin over the water table near the front. Sand this young has low bearing capacity but very little reactivity, so footing movement is uncommon and drainage problems are not. What the ground gives you here it takes back in the air.
What that means in practice, on a house in Mullaloo:
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.
Surf Life Saving Club is the fixed point most people in Mullaloo 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.
Kallaroo, Ocean Reef and Hillarys sit on the same ground as Mullaloo, 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.
Craigie is 2.3 km away but sits on the Spearwood dune system; Beldon is 2.4 km away but sits on the Spearwood dune system; Heathridge is 2.7 km away but sits on the Spearwood 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 Mullaloo 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 →
At 0.6 km from the water, Mullaloo sits inside the coastal-salt band — the band where coastal salt drives the defects. The fee concentrates on delignified battens, corroded ties and fixings, and the salt staining that starts inside the masonry, with the roof space taking the longest on a tiled roof past its first decade.
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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.
Mullaloo is 0.6 km from the coast, inside the band where delignification should be expected in tile battens. On a tiled roof more than about ten years old it is one of the first things we look at.
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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