NSW · Upper North Shore
Home builders in Warrawee
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 Warrawee job can still pay its framer on Friday. We run the Four-Point Builder Check™: licence with NSW Fair Trading, insurance sighted, still trading, and genuinely working in Warrawee. 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 Warrawee
- Warrawee is not a generic block
Mapped here: 3 residential zones, 2 overlay families, 86 heritage records, 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 Warrawee 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 Warrawee actually involves
Warrawee maps 86 heritage records in 1.34 km². That density is the defining fact about building here: on a suburb this compact, a listing is not a remote possibility to be ruled out — it is a live prospect on a meaningful share of titles.
Eighty-six records on one and a third square kilometres
Treat the heritage search as the first step rather than one of several. It is binary and quick, but the consequence is not: where a listing attaches to a title it governs what may happen to that building, and on a knockdown rebuild that single answer can end the project in the form imagined.
Because the odds here are materially higher than in most suburbs, the search belongs before an offer. Buying first and searching afterwards is a reasonable gamble at low density; at this density it is not.
The Ku-ring-gai arithmetic
A floor space ratio of 0.3:1 covers 41 of 57 mapped parcels and a height of 9.5 m covers 39 of 49, with controls reaching 17.5 m on the denser land near the station.
Multiply the land by 0.3 and that is the permitted floor area, every level counted — about 300 m² on a 1,000 m² block. Two lot bands are mapped, 900–999 m² on 39 parcels and 1,000–1,999 m² on 11, so the land is generous throughout. As across this council, it is the ratio rather than the block that limits the house.
Three zones, and where the taller land sits
R2 Low Density, R3 Medium Density and R4 High Density Residential are all mapped. The 17.5 m height controls accompany the denser zones rather than the house blocks, so a site near the station has a different outlook prospect from one further out. Confirm the zoning and the height on the adjoining parcels on the NSW Planning Portal spatial viewer.
Very little else
Two bushfire features are mapped — buffer and vegetation category 1 — along Peppermint Creek, so most of the suburb sits outside the mapping entirely. One acid sulfate soil feature is recorded, engaged only below the trigger depth. No reservations appear at all.
That short list is worth noting precisely because the heritage position is so prominent. On a Warrawee block the planning risk is concentrated almost entirely in one layer, which makes the sequencing simple: settle the listing question, then everything else is routine.
What to establish on a Warrawee block
The heritage listing against the title, before an offer — at 86 records in this area, that is the search that decides whether the project is viable as imagined. Then the 0.3:1 arithmetic against the brief. Then the height on the adjoining parcels, since 17.5 m land exists here. Bushfire, acid sulfate and reservations are all quick or absent. Flood sits with Ku-ring-gai Council.
What you are dealing with in Warrawee
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 checked Held in each council's own Flood Planning Map rather than in a statewide layer
- Heritage 86 records Impact statement; limits demolition, form and materials.
- Slope Not checked Published by individual councils rather than as a statewide layer
- Soil Acid sulfate Below trigger depth: management plan, treatment, disposal.
- Density controls 3 zones · 9.5m · 0.3:1 What may be built, and how much. Set parcel by parcel.
What is mapped in Warrawee
Read from NSW ePlanning Spatial Viewer, not a summary of it.
- Council
- Ku-ring-gai Council
- Planning scheme
- Ku-ring-gai Local Environmental Plan 2015
- Overlays mapped here
- Heritage — Item - General · Heritage — Conservation Area - General
- Residential zones mapped
- R2 Low Density Residential
R3 Medium Density Residential
R4 High Density Residential - Bushfire-prone land
- Mapped in this suburb
- Mine subsidence district
- Not in one
- Heritage items mapped
- 86
- Minimum lot size
- 900-999 m² minimum (most common of 2 minimum-lot-size bands mapped in the suburb)
- Typical height limit
- 9.5m
- Floor space ratio
- 0.3:1
- Acid sulfate soils
- Mapped in this suburb
Planning data from NSW ePlanning Spatial Viewer (CC BY 4.0), read 2026-09-20. Suburb-level, not a report on your block — check your address on the NSW Planning Portal.
Bushfire categories mapped here
Worth knowing before you budget
- Building height
The most common maximum building height mapped here is 9.5m (39 of 49 mapped parcels). Other controls that apply to a meaningful number of parcels run up to 17.5m — generally centres and larger sites, not a house block.
- Floor space ratio
A floor space ratio of 0.3:1 applies to most of the mapped parcels here (41 of 57). On an 800 m² block that is about 240 m² of floor area, every level counted.
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 NSW Fair Trading's own public register — number, class and status, with the date we looked recorded.
- 02 · Insurance
Public liability plus whatever warranty or indemnity cover NSW 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 Warrawee
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 Warrawee
Against the 3 residential zones mapped here, 2 overlay families, bushfire-prone land, 86 heritage records — and against which builders hold the right licence class for it, have done it before, and actually work under Ku-ring-gai Council.
- 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 Warrawee — 3 residential zones, 2 overlay families, 86 heritage records — and against which builders hold the right licence class, have built under these constraints before, and genuinely work under Ku-ring-gai Council. 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 Warrawee 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 Warrawee 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 Warrawee, 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 Warrawee is that quotes are only comparable when they assume the same things — and with 3 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 Warrawee
Questions about building in Warrawee
How likely is a heritage listing in Warrawee?
Materially higher than in most suburbs — 86 records are mapped across 1.34 km². A listing is a live prospect on a meaningful share of titles rather than a remote possibility, so the search belongs before an offer rather than after.
Why does the heritage search matter so much on a rebuild?
Because where a listing attaches to a title it governs what may happen to that building. On a knockdown rebuild that single answer can end the project in the form imagined — and buying first and searching afterwards is a reasonable gamble at low density but not at this one.
How much house can I build?
Multiply the land area by 0.3 — the ratio covers 41 of 57 mapped parcels. On a 1,000 m² block that is about 300 m² counting every level. The lot bands are 900–999 m² and 1,000–1,999 m², so the land is generous throughout and it is the ratio that limits the house.
Why do height controls reach 17.5 metres?
They accompany the R3 and R4 land rather than the house blocks — 9.5 m covers 39 of 49 mapped parcels. A site near the station has a different outlook prospect from one further out, so check the height on the adjoining parcels.
Is bushfire a concern in Warrawee?
Barely. Two features are mapped along Peppermint Creek, so most of the suburb sits outside the mapping entirely.
What else should I check?
Very little, which is the point. One acid sulfate feature is recorded and no reservations appear at all. The planning risk here is concentrated almost entirely in the heritage layer, so settle that and the rest is routine.
What to ask a builder about a block in Warrawee
Each one is here because of something mapped in Warrawee. Take them to whoever quotes.
- 01
Which of the 3 residential zones mapped in Warrawee covers this address, and what does that one permit that the others do not?
- 02
What bushfire attack level have you built to in Warrawee before, and what did it change in the glazing, decking and screening?
- 03
Have you had an application through Ku-ring-gai Council where a heritage control applied, and how long did the assessment take?
- 04
What height control is mapped at this address? It is set block by block in Warrawee, not suburb-wide.
Local landmarks in Warrawee
- Sainty Reserve
- Halfpenny Park
- Warrawee Park
- Laura Osborne Houison Sanctuary
- Farthing 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 Warrawee, we say so. That is a real answer we give, and the empty builder list above is the proof we mean it.
Building in Warrawee?
Licence checked with NSW Fair Trading, insurance sighted, still trading, genuinely working in Warrawee. 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
Named watercourses in Warrawee
Peppermint Creek is the one named watercourse mapped in Warrawee. Where a block sits relative to it is a design input rather than a view: it sets the riparian setback and, in a heavy event, the overland flow path.
- Peppermint Creek
Read from the NSW Water Theme, which maps gazetted watercourses only. A constructed channel or a stormwater drain is not in this list and can still carry water across a block.