tradereferTRADEREFER
Ranked by Google Reviews

Top 10 Building
in Wantirna South, Melbourne

TradeRefer lists 3 verified building businesses in Wantirna South with an average Google rating of 4.9 across 73 reviews. The businesses below are ranked from highest to lowest rating — all ABN-verified and community-recommended.

Typical cost in Wantirna South: $80–$160/hr

Ranked #2026

By Google Rating

4.9★ Avg Rating

73 reviews

100% Verified

ABN-checked

Top 3 Building in Wantirna South — Ranked by Rating

Sorted by verified Google rating, highest first. All ABN-verified.

#1
Top Rated 2026
Build One Design & Construction
Building Verified

Build One Design & Construction

Build One Design and Construction is your trusted partner for high-end custom homes, renovations, and extensions in Melbourne. Contact us today!

5.0(13 reviews)
Wantirna South
#2
GREEN EDGE BUILDERS
Building Verified

GREEN EDGE BUILDERS

With over 40 years of experience in creating beautiful, sustainable and energy efficient homes that improve the environment and enhance people's wellbeing.

5.0(10 reviews)
Wantirna South
#3
G.J. Gardner Homes - Melbourne East
Building Verified

G.J. Gardner Homes - Melbourne East

Building with the G.J. Gardner Homes Melbourne East team means partnering with a group that blends over 20 years of building experience, paired with fresh

4.8(50 reviews)
Wantirna South

How Much Do Building Cost in Wantirna South?

Based on Victoria industry rates. Always get 2–3 written quotes.

Typical Range

$80–$160

/hr

After-Hours

$240

Emergency callout

Avg Hourly

$120

Wantirna South 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 Wantirna South

A checklist before hiring any building in Wantirna South, Melbourne.

  1. 1

    Verify their electrical licence is current at your state's electrical safety authority (e.g. Energy Safe Victoria, NSW Fair Trading).

  2. 2

    Confirm they carry public liability insurance of at least $5 million — ask to see the certificate.

  3. 3

    Get 2–3 written quotes for any job over $500. A written quote protects both parties and clarifies the full scope.

  4. 4

    Check their Google and TradeRefer ratings — look for consistent reviews mentioning punctuality, clean workmanship, and clear communication.

  5. 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 Wantirna South, 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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