Home builders in Baulkham Hills
The Hills Shire Council · The Hills Local Environmental Plan 2019 · The Hills District Knockdown rebuild
- Council
- The Hills Shire Council
- Planning scheme
- The Hills Local Environmental Plan 2019
- Overlays mapped here
- Heritage — Conservation Area - General · Heritage — Item - General · Heritage — Item - Archaeological
- Residential zones mapped
- R1 General Residential
R2 Low Density Residential
R3 Medium Density Residential
R4 High Density Residential - Heritage items mapped
- 37
- Minimum lot size
- 1000-1999 m² minimum (most common of 2 minimum-lot-size bands mapped in the suburb)
- Typical height limit
- 16m
- Floor space ratio
- varies by block
- Land reserved for acquisition
- Classified Road · PublicTransport Corridor · Public Transport Corridor
- Acid sulfate soils
- Mapped in this suburb
Planning data from NSW ePlanning Spatial Viewer (CC BY 4.0), read 2026-09-14. Suburb-level, not a report on your block — check your address on the NSW Planning Portal.
Worth knowing before you budget
- Building height
No single height control covers much of Baulkham Hills: the most common is 16m, on 6 of 29 mapped parcels. Height here is set block by block. No other height control covers a meaningful share of the suburb.
- Floor space ratio
Floor space ratio varies across Baulkham Hills: the most common mapped value is 1:1, on 7 of 23 parcels. It has to be read at the address.
- Land reserved for acquisition
Parts of Baulkham Hills are reserved for future public acquisition — classified road, publictransport corridor, public transport corridor. A reservation is mapped to specific land, so whether it touches your block has to be checked at the address.
Builders serving Baulkham Hills
None yet — tell us what you're building and we'll go and find one.
What building in Baulkham Hills actually involves
Baulkham Hills has the widest gap between its two lot-size bands of any Hills suburb we have mapped: 1000–1999 m² and 600–624 m², with nothing in between. A block on one side of that line and a block on the other are different propositions entirely.
Two bands, a long way apart
Where a suburb steps gradually through lot sizes, a builder can carry assumptions across streets. Here they cannot. The subdivision question, the house footprint and the site cost all turn on which of the two bands your address sits in, and the answer is not visible from the street.
Height is set block by block
Height is mapped on 29 parcels in the suburb and the most common value, 16m, covers only six of them. There is no Baulkham Hills height answer — there is an address answer.
Heritage, including archaeology
37 heritage records intersect the suburb, covering a conservation area, general items and archaeological items. Conservation-area controls apply to houses that are not individually significant, which is the case people most often get wrong.
Acid sulfate soils, in one place
One acid sulfate soil feature is mapped. It is not a suburb-wide issue, but if your block is the one, disturbing that soil brings a management requirement and an earthworks cost.
What to ask a builder
Ask which lot-size band applies and what the height control is at the address — both, separately. Ask whether the block sits in the conservation area. And ask for recent Hills Shire approvals.
Local landmarks in Baulkham Hills
- Roxborough Park Rose Garden
- Alfred Whaling Amenities Rose Garden
- Harry Carr Reserve
- Jasper Oval
- Balcombe Heights Estate Masonic Ovals
- Col Sutton Reserve
- Michael Simpson Reserve
- Thomas Extrem Reserve
Questions about building in Baulkham Hills
What is the minimum lot size in Baulkham Hills?
Two bands are mapped — 1000–1999 m² and 600–624 m² — with nothing between them. Which one applies at your address changes the subdivision answer and the realistic house footprint.
How tall can I build in Baulkham Hills?
There is no suburb-wide answer. Height is mapped on 29 parcels and the most common value, 16m, covers only six of them. Read the control at the address.
Is my Baulkham Hills house in a conservation area?
It may be. 37 heritage records intersect the suburb, including a general conservation area as well as individual and archaeological items. Conservation-area controls apply to houses that are not individually significant.
Are acid sulfate soils a problem here?
One feature is mapped in the suburb, so it is not a general issue. If your block is the one, disturbing the soil brings a management requirement and an earthworks cost worth pricing properly.
What zone is Baulkham Hills?
All four residential zones are mapped — R1, R2, R3 and R4. The zone at the address is what governs, and it does not follow from the lot-size band.