WA · Rockingham & Mandurah
Home builders in Secret Harbour
Construction leads every industry in Australia for insolvencies. Before you hand anyone a deposit in Secret Harbour, we check their licence with Building and Energy WA, sight their insurance, confirm they are still trading — and match you to the one who actually builds on blocks like yours.
- Costs you nothing, ever
- No obligation to use them
- Details never sold
Why this is harder than it looks in Secret Harbour
- A current licence tells you nothing about solvency
External administrators lodged 2,361 initial reports for construction companies in 2024–25 — more than any other industry in the country (ASIC Insolvency Statistics, Series 3.1). Every one of those companies held a valid licence the day before. The certificate on the wall says they are permitted to build. It does not say they can pay their framer on Friday.
- Secret Harbour is not a generic block
Mapped here: 2 residential zones, bushfire-prone land. A builder who prices the house and discovers the site is a builder whose quote moves — and the variations land on you, not on them. The ones who work Secret Harbour regularly already know which of these reach which streets.
- "Get three quotes" sells you, not the builder
The standard model charges builders per enquiry and sends the same one to several of them. You are the product, the fastest caller wins, and nobody in that chain has checked whether any of them is solvent. We do not sell enquiry data — not to a panel, not to a lead broker, not ever.
The mechanism
Four checks, before anyone reaches you
Every one of them is something you could do yourself. What we sell is that it has been done, dated and published — and repeated on a schedule, because a check that happened once is worth nothing.
- 01 · Licence
Looked up on Building and Energy WA's own public register — number, class and status, with the date we looked recorded.
- 02 · Insurance
Public liability plus whatever warranty or indemnity cover WA requires. Sighted by us, not self-declared on a form.
- 03 · Still trading
Solvency re-checked on a schedule. A licence stays current right up until the day a company fails.
- 04 · Works in Secret Harbour
Confirmed with the builder against the suburbs they genuinely service — not a radius drawn on a map.
What you are dealing with in Secret Harbour
Six things a builder prices differently. This is the suburb-level picture — which of them reaches your block is an address check.
- Bushfire Mapped BAL assessment; glazing, decking and screening spec.
- Flood Not mapped Sets a minimum floor level. Flood report first.
- Heritage None mapped Impact statement; limits demolition, form and materials.
- Slope Not mapped Geotech report before footings can be priced.
- Soil None mapped Below trigger depth: management plan, treatment, disposal.
- Density controls 2 zones · R5–R80 What may be built, and how much. Set parcel by parcel.
What is mapped in Secret Harbour
Read from Landgate SLIP, not a summary of it.
- Council
- City of Rockingham
- Planning scheme
- Rockingham Local Planning Scheme No. 2
- Residential zones mapped
- Development
Residential - Bushfire-prone land
- Mapped in this suburb
- Urban growth area
- Yes
- R-Code density
- R5 to R80 · R20/40/80
Planning data from Landgate SLIP (CC BY 4.0), read 2026-09-14. Suburb-level, not a report on your block — check your address on the WA planning scheme maps.
Builders serving Secret Harbour
What building in Secret Harbour actually involves
Secret Harbour carries a split R-code written as R20/40/80 on part of the suburb, alongside a range running from R5 to R80. A code written as a set like that means the higher densities apply only where a further requirement in the scheme is met — so the number on the map is a ceiling with conditions attached, not a permission.
What a split code actually means
Most lots carry a single R-number: dwellings per hectare, setting the minimum and average lot size. A code written as a pair or a set works differently. The base figure is what applies; the higher figures apply only where the scheme's additional criteria are satisfied. That is a genuinely different thing to being coded at the top number, and it is the most common misunderstanding on land like this — a lot advertised as "R80" may be R20 until a specific condition is met. Read the scheme provision that sits behind the code before assuming the density is available.
R5 at one end, R80 at the other
Beyond the split code, Secret Harbour is coded from R5 — large-lot residential — up to R80, with R10, R20, R25, R30 and R40 in between. That is a sixteen-fold range across 6.54 km². The practical consequence is that lot width varies enormously, and a design drawn for one part of the suburb will frequently not fit another. Lot width is usually what stops a plan, not lot area.
Three structure plans, about 1,800 lots
Three endorsed structure plans cover land here, planning roughly 1,800 lots. That is a small number against Baldivis's 65 plans, and it reflects a coastal suburb delivered as a coherent whole rather than assembled from many separate releases. In practice that makes the "which plan covers my lot" question easier to answer here than almost anywhere else on this coast — but it still has to be asked, because the plan sets density and staging regardless of how few there are.
Two zones
Residential and Development are mapped under Rockingham Local Planning Scheme No. 2. Development zoning identifies land intended to be brought through subdivision, generally under a structure plan, rather than settled residential land. Whether a site is Residential or Development tells you whether you are buying a finished proposition or a process with a timeline attached.
Bushfire on the coastal strip
Part of Secret Harbour sits inside a designated Bush Fire Prone Area, with four features recorded. A block inside one needs a Bushfire Attack Level assessment, and what comes back sets glazing, screening, decking, subfloor and roof detail alike. On coastal heath the rating varies with what is retained nearby, so it is a lot-level answer rather than a suburb-level one — and it belongs before the design is finalised, because a higher rating can force changes to an elevation already drawn.
A district town centre inside the boundary
Commercial, District town centre, Public purposes, Rural and Special use zones are all mapped within Secret Harbour. A district town centre zone signals a centre intended to serve a wider catchment than a local shop, and land near it behaves differently over time — both in what may be built and in traffic. It is worth locating on a map relative to a prospective lot rather than assuming the current built form is the plan.
What a coastal upgrade pack does and does not include
Builders working near this coast generally offer a coastal specification as an upgrade rather than as the standard, and the useful question is what sits inside it. Frequently it covers the visible external hardware and the roof sheeting, and stops short of the concealed fixings, the garage door mechanism, the hot water unit, the air conditioning condenser and anything fixed to an external wall. Ask for the inclusion list item by item. On an ocean-facing lot the excluded items are the ones that fail first.
What to establish first in Secret Harbour
The R-code at the lot, and if it is written as a set, the scheme provision behind it — the higher density may not be available. Then which of the three structure plans applies. Then the zone, Residential or Development. Then the Bushfire Attack Level and the exposure and wind classifications.
What to ask a builder about a block in Secret Harbour
Each one is here because of something mapped in Secret Harbour. Take them to whoever quotes.
- 01
Which of the 2 residential zones mapped in Secret Harbour covers this address, and what does that one permit that the others do not?
- 02
What bushfire attack level have you built to in Secret Harbour before, and what did it change in the glazing, decking and screening?
- 03
What R-code is this block, and what does it set for minimum and average site area per dwelling?
- 04
Does the Amd 1 to Anstey Park Structure Plan apply to this lot, and what does it change about layout or staging?
Local landmarks in Secret Harbour
- Secret Harbour Foreshore
- Comet Bay College
- Comet Bay Primary School
- Secret Harbour Primary School
- Secret Harbour Child Health Centre
Named plans that apply in Secret Harbour
Structure plans covering land here, as the authority names them. Which one governs your lot decides its density, layout and staging — check the address before you assume the zone alone sets the rules.
- Amd 1 to Anstey Park Structure Plan
Endorsed by the Western Australian Planning Commission. The plan that covers your lot sets its density, lot layout and staging.
- Anstey Park Structure Plan DA7 - Secret Harbour (SP)
Endorsed by the Western Australian Planning Commission. The plan that covers your lot sets its density, lot layout and staging.
- Modified Golden Bay Structure Plan - L2 & L3 Warnbro Sound Ave, Golden Bay (SP)
Endorsed by the Western Australian Planning Commission. The plan that covers your lot sets its density, lot layout and staging.
Source: catalogue.data.wa.gov.au/dataset/local-planning-schemes, read 2026-09-14.
Questions about building in Secret Harbour
What does an R-code written as R20/40/80 mean?
That the higher densities apply only where a further requirement in the scheme is met. The base figure is what applies by default. A lot advertised as R80 may be R20 until a specific condition is satisfied — read the scheme provision behind the code before assuming the density.
What R-codes apply in Secret Harbour?
A range from R5 — large-lot residential — up to R80, with R10, R20, R25, R30 and R40 in between, plus the split R20/40/80 code. That is a sixteen-fold range across 6.54 km², so lot width varies enormously.
How many structure plans cover Secret Harbour?
Three, planning roughly 1,800 lots — a small number against Baldivis’s 65, reflecting a coastal suburb delivered as a coherent whole rather than assembled from many releases. The plan still sets density and staging, so it still has to be read.
Is Secret Harbour bushfire-prone?
Part of it is, with four features recorded. A block inside one needs a Bushfire Attack Level assessment, and on coastal heath the rating varies with what vegetation is retained nearby — a lot-level answer, best obtained before the design is finalised.
What should an ocean-facing quote name?
The exposure category, which sets the corrosion specification for fixings, hardware, cladding and roof sheeting, and the wind classification, which drives framing, tie-downs and bracing. Neither is a default here, and a builder who names neither has assumed both.
How this works
- 01Tell us about the build
Six questions, about three minutes.
- 02We match it against Secret Harbour
Against the 2 residential zones mapped here, bushfire-prone land, growth-area status — and against which builders hold the right licence class for it, have done it before, and actually work under City of Rockingham.
- 03One recommendation, with the reasoning
Not six quotes to sift. We negotiate on your behalf; you deal with the builder directly. Builders pay us, only once you sign.
No catch
What you are agreeing to
- Nothing. There is no contract with us, no account to create, no card, and nothing to cancel.
- No obligation to use whoever we recommend. Take the name and the reasoning and do what you like with it, including nothing.
- No phone number needed to start. Give us one if you want to be called; otherwise we write.
- One builder contacts you, not six. And only after you have seen the brief and said yes.
- Your details go to that builder and nobody else. Never sold, never auctioned, never shared with a panel.
- If we have nobody in Secret Harbour, we say so. That is a real answer we give, and the empty builder list above is the proof we mean it.
Building in Secret Harbour?
Licence checked with Building and Energy WA, insurance sighted, still trading, genuinely working in Secret Harbour. If we cannot find one worth recommending, we will say so.
Start my brief →Free · about 3 minutes · no obligation · your details are never sold