In Western Australia, you’ll need a building permit for most residential construction projects, including new homes, major renovations, and certain structural changes. These permits ensure your building plans comply with the Building Code of Australia and local council regulations, providing peace of mind that your new home will be safe and properly constructed.
The permit process might seem overwhelming, especially for first home builders, but breaking it down into manageable steps makes it much more approachable. This guide will walk you through everything you need to know about home building permits in Western Australia, from initial application to final approval.
Understanding Home Building Permits in Western Australia
Building permits in Western Australia ensure construction projects meet safety standards and comply with building codes. These legal requirements protect both property owners and the wider community by ensuring all building work is properly regulated.
The Legal Framework
In Western Australia, the Building Act 2011 and Building Regulations 2012 govern the building permit process. These laws establish the requirements for obtaining permits before commencing construction work.
The Building Commission, operating under the Department of Mines, Industry Regulation and Safety, oversees the implementation of these regulations. Local government authorities (councils) typically serve as the relevant permit authority that processes and issues building permits.
All building work must comply with the Building Code of Australia (BCA), which is part of the National Construction Code (NCC). This code sets minimum requirements for safety, health, amenity, and sustainability in the design and construction of buildings.
Key legislation to be aware of:
- Building Act 2011 (WA)
- Building Regulations 2012 (WA)
- National Construction Code
- Local planning schemes
Types of Building Permits
Western Australia has two main types of building permits that you’ll need to consider for your project:
- Building Permit – Certified (BA1) This permit requires plans and specifications to be certified by a registered building surveyor before lodging with your local council. The council then has 10 business days to process your application.
- Building Permit – Uncertified (BA2) For this permit, you submit your application directly to the permit authority without prior certification. The authority has 25 business days to assess and determine the application.
Different permits have different application fees, typically calculated as a percentage of the project value plus levies.
When Do You Need a Building Permit?
You need a building permit for most construction works in Western Australia, including:
- Building a new home
- Major renovations or additions
- Structural alterations to existing buildings
- Installing swimming pools or spas deeper than 300mm
- Building retaining walls higher than 500mm
- Constructing patios, carports, or garages larger than 10m²
- Demolishing existing structures
However, certain works are exempt from requiring a permit. These typically include:
- Non-structural renovations such as kitchen or bathroom renovations (without moving walls)
- Maintenance and repair work that doesn’t alter the structure
- Small garden sheds or structures under 10m²
- Fences under 1.8m high (subject to local planning requirements)
- Pergolas that aren’t covered
You should always check with your local council before starting any work, as requirements can vary between localities. Penalties for building without a permit can be substantial, including fines up to $50,000 for individuals.
The Application Process
Navigating Western Australia’s building permit application process requires careful preparation and attention to detail. Understanding each step will help you secure approval for your home building project with minimal delays.
Pre-application Requirements
Before submitting your application, you must gather several essential documents. These include your certificate of title, detailed building plans, and specifications drawn up by a registered building practitioner.
You’ll need to ensure your plans comply with the Building Code of Australia and relevant Australian Standards. This includes energy efficiency ratings, structural engineering calculations, and bushfire attack level (BAL) assessments where applicable.
Local council planning approvals or development applications must be finalised first. Many councils require planning permission before you can apply for a building permit.
Don’t forget to organise home indemnity insurance if your project exceeds $20,000. This protects you if your builder cannot complete the work or rectify defects.
Submitting Your Application
You can submit your building permit application to either a private building surveyor or your local council. Private surveyors often process applications more quickly but may charge higher fees.
Your application must include:
- Completed application form
- Certificate of design compliance (CDC) signed by a registered building surveyor
- All construction drawings and specifications
- Payment of the required fees
Application Fees in Western Australia:
Project Value | Typical Fee Range |
Up to $20,000 | $100-$200 |
$20,000-$100,000 | $200-$500 |
$100,000-$500,000 | $500-$2,000 |
Over $500,000 | 0.4% of project value |
Keep copies of all submitted documents for your records. Electronic submissions are accepted by most authorities, though some still require paper copies.
Assessment and Approval
Once submitted, your application undergoes thorough assessment by a building surveyor. They will check compliance with building codes, standards, and local planning schemes.
The permit authority must process uncertified applications within 25 business days, while certified applications should be completed within 10 business days. Delays may occur if additional information is requested.
If issues arise during assessment, you might receive a request for further information (RFI). Respond promptly to avoid unnecessary delays in your project timeline.
Upon approval, you’ll receive your building permit document which must be displayed at the construction site. The permit remains valid for 24 months from issue date, though extensions may be granted in certain circumstances.
Remember that work must commence within 12 months of the permit being issued. Regular inspections will be required at various stages of construction.
Engaging with Professionals
Building a home in Western Australia requires collaboration with qualified professionals who understand the permit process and applicable building standards. Working with the right experts can save you time, money and prevent compliance issues.
Choosing a Home Builder
Your choice of builder significantly impacts your project’s success and compliance with building regulations. Registered builders are legally required for work valued over $20,000 in Western Australia.
Always verify a builder’s registration with the Building Services Board through the Department of Mines, Industry Regulation and Safety website. Ask potential builders about their experience with similar projects and request references from past clients.
Review their previous work and ensure they have appropriate insurance coverage, including home indemnity insurance. This protects you if they become insolvent or fail to complete the work.
Discuss permit processes upfront. Quality builders like WOW Homes manage permit applications efficiently and keep you informed throughout the process. We clearly explain which permits your project requires and handle documentation professionally.
The Role of Building Surveyors
Building surveyors play a crucial role in the permit process as independent professionals who assess compliance with building codes and standards. In WA, you must engage a registered building surveyor to issue your Certificate of Design Compliance.
Surveyors review your building plans and specifications to ensure they meet the Building Code of Australia and local requirements. They conduct mandatory inspections at key construction stages:
- After site preparation but before footings are poured
- When the roof frame is completed
- Upon project completion
Consider engaging your surveyor early in the design phase. Early involvement helps identify potential compliance issues before finalising plans, potentially saving costly redesigns later.
Building surveyors can be either private certifiers or local government employees. Private surveyors often offer faster processing times but charge separate fees, while council surveyors’ services may be included in permit costs.
Complying with Building Codes and Standards
Building permits in Western Australia require strict adherence to specific codes and standards that ensure safety, structural integrity and sustainability. Understanding these requirements before beginning your project can save you time, money and frustration during the approval process.
Australian Building Standards
In Western Australia, all residential buildings must comply with the National Construction Code (NCC), which incorporates the Building Code of Australia (BCA). The BCA sets out technical provisions for building design and construction, including structure, fire safety, access, and health requirements.
Your building project must adhere to Australian Standards (AS), which provide detailed technical specifications for various building elements. These include AS 1684 for timber framing and AS 3600 for concrete structures.
Local councils may impose additional requirements based on specific regional considerations. For example, buildings in cyclone-prone northern regions must meet higher wind-loading standards.
Key compliance documents required:
- Certified structural engineering drawings
- Energy efficiency compliance certificates
- Fire safety design verification (for certain building classes)
- Termite management systems documentation
Energy Efficiency and Sustainability Requirements
Your new home in WA must meet minimum 6-star energy efficiency requirements under the NCC. This rating system evaluates how effectively your building maintains comfortable temperatures without excessive energy use.
The assessment considers:
- Building orientation and layout
- Insulation in walls, ceilings and floors
- Window placement, size and glazing type
- Shading features and ventilation systems
Water efficiency is equally important in WA’s climate. You must install water-efficient fixtures meeting the WELS (Water Efficiency Labelling and Standards) scheme requirements, including taps, showerheads and toilets with appropriate star ratings.
Solar passive design principles are highly recommended though not mandatory. Incorporating northern exposure for living areas, thermal mass elements, and cross-ventilation can significantly reduce your ongoing energy costs.
Post-Approval Considerations
Once you’ve secured your building permit in Western Australia, several important responsibilities follow to ensure your project stays compliant and proceeds smoothly to completion.
Site Management and Safety
Your building site must comply with WorkSafe WA regulations throughout the construction process. You should establish clear safety protocols before work begins, including proper fencing, signage, and access control to prevent unauthorised entry.
Noise restrictions must be observed, with construction typically limited to between 7am and 7pm on weekdays and 7am to 5pm on Saturdays. No work is permitted on Sundays or public holidays without special permission.
Dust and sediment control measures are mandatory to prevent environmental pollution. This may include installing silt fences, sediment traps, or regular watering of exposed soil.
You’re responsible for proper waste management, including providing skip bins and ensuring regular removal of building waste. Improper disposal can result in hefty fines from your local council.
Inspections During Construction
Building inspections are critical milestones throughout your project. The Building Commission requires mandatory inspections at specific stages, including footings, slab, frame, and lockup stage.
You must notify your building surveyor at least 24 hours before reaching each inspection point. Work cannot proceed until the inspector approves that stage.
Keep detailed records of all inspections, including dates, findings, and any remedial actions required. These records may be necessary for your final certification.
Some complex elements may require specialist inspections, such as electrical, plumbing, or structural engineering certifications. These should be scheduled in advance to prevent project delays.
Missed or failed inspections can result in costly rework and construction delays, so maintain regular communication with your builder about inspection timing.
Final Certifications and Occupancy
Before you can occupy your new home, you’ll need to obtain an Occupancy Permit from your building surveyor. This confirms your building complies with all applicable codes and standards.
The surveyor will conduct a final inspection to verify that all work matches approved plans and meets the Building Code of Australia requirements. Common issues include incomplete fire safety systems, accessibility features, or energy efficiency measures.
You’ll need to collect all relevant compliance certificates, including electrical safety, plumbing, glazing, waterproofing, and pest barriers. Keep these documents in a secure location for future reference.
Most councils require notification once construction is complete. This triggers the closure of your building permit and updates council records regarding your property.
Without proper certification, you may face difficulties with insurance coverage, future property sales, or even legal penalties for unauthorised occupation.
Need More Information? Contact WOW Homes Today
Building a home in Western Australia involves navigating various permits and regulations. If you’re feeling overwhelmed with the information presented in this guide, WOW Homes is here to help.
Our team of building experts specialises in guiding clients through the entire permit application process. With years of experience in Western Australian construction, we understand the local requirements thoroughly.
Don’t let permit complexities delay your dream home. Reach out today, and let our knowledgeable team simplify the building permit process for you.