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Across Western Australia
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How Building Works in Western Australia
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Builders Pricing in Western Australia
| Service | Min | Max | Avg |
|---|---|---|---|
New Home Construction Complete build of new home | $200,000.00 | $500,000.00 | $350,000.00 |
Home Renovation Major home renovations | $20,000.00 | $150,000.00 | $85,000.00 |
Bathroom Remodel Complete bathroom renovation | $12,000.00 | $30,000.00 | $21,000.00 |
Kitchen Renovation Full kitchen upgrade | $15,000.00 | $50,000.00 | $32,500.00 |
Deck Construction Build a wooden deck | $5,000.00 | $20,000.00 | $12,500.00 |
Prices vary by job scope, access, and timing. Get personalized quotes for accurate pricing.
Building Licensing & Rules in Western Australia
Important regulations and resources to help you hire with confidence in Western Australia.
Building contractor registration
Individuals, partnerships and companies that contract to provide building work requiring a building permit and valued over AUD 20 000 must hold building contractor registration. Applicants must demonstrate financial and organisational capacity, including access to at least AUD 50 000 and a quick ratio of 1:1, and have a nominated supervisor who is a registered building practitioner.
Building practitioner registration
Individuals supervising building work must be registered as building practitioners. Different pathways require five to seven years of full-time experience or membership of professional bodies, or successful completion of board examinations. Registration allows the practitioner to be nominated as a supervisor for a building contractor.
Home indemnity insurance
Residential building work over AUD 20 000 must be covered by home indemnity insurance. Builders must take out the policy in the owner’s name before accepting a deposit or starting work and give the owner the certificate. HII covers the construction period and six years from practical completion if the builder dies, disappears, becomes insolvent or has registration cancelled.
Home building contract conditions
Contracts for residential building work valued between AUD 7 500 and AUD 500 000 must be in writing and dated. Deposits are limited to 6.5% of the contract price (20% in prescribed remote areas). Progress payments are only for work done or materials supplied. Variations must be in writing and signed, and the contract is conditional on obtaining a building permit and water approval within 45 working days.
WHS management plan and site safety
Under the Work Health and Safety Act 2020, principal contractors must prepare a WHS management plan for each construction project before work starts, ensure workers are aware of the plan and revise it as needed. They must obtain safe work method statements for high-risk work, manage materials, plant and traffic, secure the site from unauthorised access and display signage at the workplace.
Helpful Resources
Building contractor registration
Verify licence status and find registered practitioners.
Building practitioner registration
Know your rights for domestic building work and disputes.
Home indemnity insurance fact sheet
Industry standards, training, and professional guidelines.
Home Building Contracts Act notice
Construction work code of practice
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Frequently Asked Questions
What services do builders typically offer?
Builders provide construction, renovation, and extension services for residential and commercial properties.
Are builders in Australia required to be licensed?
Yes, all builders must be licensed and meet state-specific requirements before operating.
Do builders provide warranties on their work?
Builders usually offer warranties on workmanship and materials in compliance with Australian standards.
How long does a typical home renovation take?
The duration depends on the scope but generally ranges from weeks to several months.
Do I need to supply materials for my building project?
Builders usually source materials, but you can discuss preferences or specific requirements with them.
What safety standards must builders adhere to?
Builders must follow Australian building codes and safety regulations throughout the construction process.
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