SA · Southern Adelaide
Home builders in Moana
A builder’s licence is permission to trade. It is not a solvency test. 2,361 construction companies entered external administration last financial year, more than any other industry in the country — and no regulator checks whether the one quoting your Moana job can still pay its framer on Friday. We run the Four-Point Builder Check™: licence with Consumer and Business Services, insurance sighted, still trading, and genuinely working in Moana. Then one name and the reasoning behind it — or a straight no.
- Costs you nothing, ever
- No obligation to use them
- Details never sold
Why this is harder than it looks in Moana
- Moana is not a generic block
Mapped here: 4 residential zones, 6 overlay families, 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 Moana regularly already know which of these reach which streets.
- A current licence tells you nothing about solvency
Every one of the companies behind that figure held a valid licence the day before it failed. The certificate on the wall says they are permitted to build. It does not say they can pay their framer on Friday.
What building in Moana actually involves
Moana maps a maximum building height of 24.5 m and, in levels, up to six levels — inside a coastal suburb of just 2.4 km² that also maps a one-level maximum elsewhere in the same boundary. That spread, from one level to six, is the defining planning fact here, and it is what a buyer needs to understand before assuming a beachside outlook is permanent.
One level to six, in two and a half square kilometres
The Code maps maximum building height in two forms and both vary: 10.5 m and 24.5 m in metres, and 1, 2, 3 and 6 levels in levels. A design can satisfy one form and fail the other, so both have to be read. More importantly for a homeowner, the control on the land next to you is a separate question from the control on yours. A 24.5 m envelope beside a single-level house is the sort of thing that is obvious from the mapping and invisible from the street.
No heritage mapping at all
Moana records no heritage places, and neither a Local Heritage Place nor a State Heritage Place overlay is mapped in the suburb. Aldinga Beach carries both overlays and four recorded places; Seaford carries the State overlay. For Moana that means the heritage question simply does not arise: a knockdown rebuild faces no listing check and no character assessment. The only comparable control here is the Regulated and Significant Tree overlay, which can still determine where a house sits and what may be excavated near a root zone.
Site area: 250 m², 270 m², or four hectares
Three minimum site area rules are mapped: a detached dwelling minimum of 250 m² in some parts, 270 m² in others, and a 4 hectare minimum on the rural-zoned land. Alongside that, two frontage rules — 8 m and 9 m detached dwelling minimums. The compact minimums make a small-lot or row-dwelling proposition genuinely available on parts of Moana; the rural minimum makes it impossible on others.
Four zones, including Rural Living
General Neighbourhood, Housing Diversity Neighbourhood, Master Planned Neighbourhood and Rural Living are mapped. The presence of Rural Living in a 2.4 km² coastal suburb is what produces the four-hectare rule, and it means a Moana address can be a compact beachside lot or acreage. Those share no cost structure: on rural living land, driveway, service runs, water supply and potentially on-site wastewater are the build.
Bushfire and flood together
High Risk, General Risk and Urban Interface bushfire categories are mapped, along with Hazards (Flooding — High) and Hazards (Flooding — General). Carrying a High Risk bushfire band and a High flood band in one small coastal suburb is unusual, and they apply to different parts of it — the bushfire mapping follows vegetation and the interface with it, the flood mapping follows the low ground and the watercourses. A block can be in one, both or neither, and where the High flood mapping applies it can set a minimum finished floor level.
No acid sulfate soils
The mapping we hold records none in Moana, where Aldinga Beach records one. That removes an earthworks step, so what happens below ground is a geotechnical question, not a contamination one. On coastal sand the geotechnical question is the substantive one anyway: bearing, and the depth to a competent layer, decide whether a conventional slab works or piers are needed.
Sand, not just salt
On dune-front land there are two mechanisms at work and they are frequently conflated. Salt drives corrosion, which is a materials-grade question. Wind-driven sand drives abrasion, which is a finish and detailing question — it strips coatings, scours glazing, and finds its way into tracks, seals and mechanical hardware. A specification chosen for corrosion alone can still be the wrong specification for abrasion. Sliding door tracks, window seals and any external motorised hardware are where the difference shows up first.
What to establish first in Moana
The height control at your address and on the land beside it, because one level and six levels are both mapped here. Then the zone and the minimum site area — 250 m² and four hectares are both live. Then bushfire and flood, which reach different parts of the suburb. Then the site classification on sand and the exposure category.
What you are dealing with in Moana
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 Mapped Sets a minimum floor level. Flood report first.
- Heritage None mapped Impact statement; limits demolition, form and materials.
- Slope Not checked No statewide landslip layer in the Planning and Design Code
- Soil None mapped Below trigger depth: management plan, treatment, disposal.
- Density controls 4 zones What may be built, and how much. Set parcel by parcel.
What is mapped in Moana
Read from Planning and Design Code via SAPPA (PlanSA), not a summary of it.
- Council
- City of Onkaparinga
- Planning scheme
- Planning and Design Code
- Overlays mapped here
- Hazards (Bushfire — High Risk) · Hazards (Bushfire — General Risk) · Hazards (Bushfire — Urban Interface) · Hazards (Flooding — High) · Hazards (Flooding — General) · Regulated and Significant Tree
- Residential zones mapped
- General Neighbourhood
Housing Diversity Neighbourhood
Master Planned Neighbourhood
Rural Living - Bushfire-prone land
- Mapped in this suburb
- Acid sulfate soils
- None mapped
- Minimum Frontage
- 8m; semi-detached dwelling is 8m; row dwelling is 6m; group dwelling is 18m; residential flat building is 18m · 9m; semi-detached dwelling is 9m; row dwelling is 6m; group dwelling is 18m; residential flat building is 18m
- Minimum Site Area
- Minimum site area for a detached dwelling is 250 sqm; semi-detached dwelling is 250 sqm; row dwelling is 150 sqm; group dwelling is 175 sqm; residential flat building is 175 sqm
+2 other rules mapped in this suburb - Maximum Building Height (Metres)
- 10.5m · 24.5m
- Maximum Building Height (Levels)
- 1 level to 6 levels
4 different values mapped across the suburb
Planning data from Planning and Design Code via SAPPA (PlanSA) (CC BY 4.0), read 2026-09-14. Suburb-level, not a report on your block — check your address on the SA Property and Planning Atlas.
Bushfire categories mapped here
The mechanism
The Four-Point Builder Check™
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 Consumer and Business Services's own public register — number, class and status, with the date we looked recorded.
- 02 · Insurance
Public liability plus whatever warranty or indemnity cover SA 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 Moana
Confirmed with the builder against the suburbs they genuinely service — not a radius drawn on a map.
How this works
- 01Tell us about the build
Seven questions, about three minutes.
- 02We match it against Moana
Against the 4 residential zones mapped here, 6 overlay families, bushfire-prone land — and against which builders hold the right licence class for it, have done it before, and actually work under City of Onkaparinga.
- 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.
What you get, and what it costs you
- One builder, not a list
We read your brief against what is actually mapped in Moana — 4 residential zones, 6 overlay families, bushfire-prone land — and against which builders hold the right licence class, have built under these constraints before, and genuinely work under City of Onkaparinga. You get one name and the reasoning in writing.
- Or a straight no
The same business day you get one of two things: our recommendation, with the reasons — or a plain email saying we have not got a builder in Moana we would put our name to yet, and what we are doing about it. No drip campaign, no being passed around.
- It costs you nothing, ever
The builder pays us, and only if you sign with them. You are never charged, and you are never under any obligation to use the builder we name. How the fee works.
We are not a builder, we do not manage your build, and we do not hold your money.
Fair questions before you send anything
- You have no builders listed in Moana yet. What use is that?
A fair question, and the honest answer is that a list is not what we do. We do not publish a builder until the licence is checked, the insurance is sighted and we have confirmed they are still trading — so an empty list here means we have not finished that work in Moana, not that we cannot help. Send the brief and we go and find one for your block. If we cannot, you get told that, the same day, rather than being added to a mailing list.
- Why not just get three quotes myself?
You can, and for a simple job you probably should. The difficulty on a block in Moana is that quotes are only comparable when they assume the same things — and with 4 residential zones mapped here, two builders can price the same house against different assumptions about the site and both be quoting honestly. Sorting that out is the part we do.
Builders serving Moana
Questions about building in Moana
How tall can a building be in Moana?
It varies sharply. Maximum heights of 10.5 m and 24.5 m are mapped in metres, and 1, 2, 3 and 6 levels in levels, across 2.4 km². Read both forms at your address — and on the land beside you, because that decides your outlook.
Is Moana heritage-constrained?
No heritage places are recorded and neither the Local nor State Heritage Place overlay is mapped in the suburb. A knockdown rebuild here faces no listing check and no character assessment — only the Regulated and Significant Tree overlay applies.
What minimum site area applies in Moana?
Three rules are mapped: a detached dwelling minimum of 250 m² in some parts, 270 m² in others, and a 4 hectare minimum on rural-zoned land. Two frontage rules also apply — 8 m and 9 m detached dwelling minimums.
Does Moana have both bushfire and flood risk?
Yes, in different parts. High Risk, General Risk and Urban Interface bushfire categories are mapped, along with High and General flood categories. A block can be in one, both or neither, and High flood mapping can set a minimum finished floor level.
What foundation should I expect on coastal sand?
It depends on the site classification for the lot. On sand, bearing and the depth to a competent layer decide whether a conventional slab works or piers are needed — a substantial cost difference that a soil test settles before contract.
What to ask a builder about a block in Moana
Each one is here because of something mapped in Moana. Take them to whoever quotes.
- 01
Which of the 4 residential zones mapped in Moana covers this address, and what does that one permit that the others do not?
- 02
What bushfire attack level have you built to in Moana before, and what did it change in the glazing, decking and screening?
Local landmarks in Moana
- Babbacombe Park
- Graham Rabbett Reserve
- Moana Beach Tourst Park
- Moana Park
- Moana Sands Conservation Park
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 Moana, we say so. That is a real answer we give, and the empty builder list above is the proof we mean it.
Building in Moana?
Licence checked with Consumer and Business Services, insurance sighted, still trading, genuinely working in Moana. If we cannot find one worth recommending, we will say so.
Find my builder — free →Free · about 3 minutes · no obligation · your details are never sold