Top 10 Building
in Sunbury, Melbourne
TradeRefer lists 5 building businesses in Sunbury with an average Google rating of 4.8★ across 92 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
92 reviews
ABN Checked
ABN-checked
Top 5 Building in Sunbury — Ranked by Rating
Sorted by public Google rating, highest first. All ABN-checked.
One Bau Group
One Bau Group is a highly rated building business serving Sunbury and surrounding areas in VIC. With an outstanding 5-star rating from 23 customer reviews, they are one of the top-rated building providers in the area. Contact One Bau Group today — call +61 434 944 042 or visit their website for a free quote.
Okey Homes
Okey Homes is a highly rated building business serving Sunbury and surrounding areas in VIC. With an outstanding 5-star rating from 1 customer reviews, they are one of the top-rated building providers in the area. Contact Okey Homes today — call +61 419 582 542 or visit their website for a free quote.
G.J. Gardner Homes - Hume Sunbury
Building with Kevin and the G.J. Gardner Homes Hume team means partnering with experts who bring decades of industry wisdom and a vibrant approach to one of
Sunset Master Builders
Sunset Master Builders deliver custom extensions, kitchen and bathroom renovations.
ZESKON Homes
Luxury Home Builder, Melbourne, Zeskon Homes – Greenvale, Sunbury, Home Builder, Luxury Custom Home Builder, Multi Unit Development
How Much Do Building Cost in Sunbury?
Based on Victoria industry rates. Always get 2–3 written quotes.
Typical Range
$80–$160
/hr
After-Hours
$240
Emergency callout
Avg Hourly
$120
Sunbury market
Estimates only. Always request a written quote before authorising work.
Building Licensing in Victoria
In Victoria, builders must be registered with the Victorian Building Authority (VBA). Work over $10,000 requires a Major Domestic Building Contract.
How to Choose the Best Building in Sunbury
A checklist before hiring any building in Sunbury, Melbourne.
- 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 Sunbury, Melbourne
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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