Top 10 Building
in Gnangara, Perth
TradeRefer lists 4 building businesses in Gnangara with an average Google rating of 4.8★ across 49 reviews. The businesses below are ranked from highest to lowest rating — all ABN-checked and community-recommended.
Ranked #2026
By Google Rating
4.8★ Avg Rating
49 reviews
ABN Checked
ABN-checked
Top 4 Building in Gnangara — Ranked by Rating
Sorted by public Google rating, highest first. All ABN-checked.

Jubilee Home Builders
Jubilee: Your trusted Perth Residential Builder. Specializing in custom homes, developments, and subdivisions with exceptional craftsmanship!

Prime West Constructions
The Prime West Constructions team is well equipped with decades of experience for both commercial and residential Perth Building.

Fox Granny Flats
Fox Granny Flats are Perth's granny flat specialists; with contemporary designs that are 100% relocatable & affordable. Chat to us about your next project.

Milford Homes Pty Ltd
Milford Homes is Western Australia's Largest Registered Stump and Pole Home Builder. Building homes in WA since 1987.
How Much Do Building Cost in Gnangara?
Based on Western Australia industry rates. Always get 2–3 written quotes.
Typical Range
$80–$160
/hr
After-Hours
$240
Emergency callout
Avg Hourly
$120
Gnangara market
Estimates only. Always request a written quote before authorising work.
Building Licensing in Western Australia
In WA, builders must be registered with the Building Services Board. A home indemnity insurance is required for work over $20,000.
How to Choose the Best Building in Gnangara
A checklist before hiring any building in Gnangara, Perth.
- 1
Verify their electrical licence is current at your state's electrical safety authority (e.g. Energy Safe Victoria, NSW Fair Trading).
- 2
Confirm they carry public liability insurance of at least $5 million — ask to see the certificate.
- 3
Get 2–3 written quotes for any job over $500. A written quote protects both parties and clarifies the full scope.
- 4
Check their Google and TradeRefer ratings — look for consistent reviews mentioning punctuality, clean workmanship, and clear communication.
- 5
Ask whether they'll provide a Certificate of Compliance (electrical safety certificate) on completion, as required by law in most states.
FAQs — Building in Gnangara, Perth
How much does a home extension cost in Australia?
A single-storey extension typically costs $2,000–$3,500 per m². A 40m² addition runs $80,000–$140,000 including structural work, roofing, cladding, and fit-out. Two-storey additions cost more due to engineering and structural complexity. Always get a fixed-price contract rather than a cost-plus arrangement.
Do I need council approval for a home extension?
Yes in most cases. Extensions that change the building's footprint, height, or floor area require a building permit and often a planning permit. Some minor works fall under 'exempt development' thresholds — these vary by state and council. Your builder or building designer can advise what approvals apply to your project.
What is the difference between a builder and an architect?
An architect designs the building and may project-manage, but doesn't do physical construction. A builder constructs the project to approved plans. A building designer (draftsperson) produces plans without an architect's full qualification. For most residential projects, a building designer plus licensed builder is sufficient and more cost-effective.
How long does a granny flat take to build in Australia?
A standard prefabricated or modular granny flat takes 12–20 weeks from approval to completion. Traditionally-built granny flats take 16–26 weeks. The approval process (council or CDC) takes 4–10 weeks before construction can begin. Total time from concept to move-in is typically 6–12 months.
What should a building contract include?
A compliant building contract must include: fixed price or schedule of rates, scope of works, start and completion dates, progress payment schedule, insurance details, the builder's licence number, variation process, and dispute resolution procedure. Never pay more than 10% deposit in most states.
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