Perth Patio Builder: Design, Structural Engineering, Council Approval & Construction
- The Patio & Shed Co

- Jul 13
- 6 min read
Building a patio in Perth is one of the best ways to improve your outdoor living space while adding value and functionality to your home.
With Perth's Mediterranean climate, featuring warm sunny summers and mild winters, outdoor entertaining has become an important part of the Western Australian lifestyle. A professionally designed patio provides a comfortable outdoor area where family and friends can gather, entertain and enjoy the outdoors throughout the year.
A well-designed patio is more than just an extension of your home. It requires careful consideration of architectural design, structural engineering, drainage, materials, council requirements and construction methods to ensure the finished structure is safe, durable and compliant.
At The Patio & Shed Co., we assist Perth homeowners with complete patio solutions, including:
Custom patio design
Architectural drawings
Structural engineering certification
Council approval documentation
Patio construction
Whether you are planning a modern outdoor entertaining area, a traditional timber-look patio or a custom steel structure, our team can help guide you through the process.

Custom Patio Design Perth
Every property is different, and a successful patio design should consider the existing home, available space, site conditions and your intended use of the area.
A professionally designed patio should consider:
The location and orientation of the patio
Access requirements
Existing building structures
Outdoor entertaining requirements
Natural light and ventilation
Privacy considerations
Drainage requirements
Local council planning requirements
Our team can provide guidance on suitable structural solutions for both steel and timber patio structures based on your specific site conditions.
Common patio designs include:
Attached patios connected to the existing home
Freestanding patios
Gable roof patios
Skillion roof patios
Flat roof patios
Insulated patio systems
Custom outdoor entertaining structures
A properly considered design ensures your patio not only looks great but performs structurally for many years.
Patio Architectural Drawings and Plans Perth
Before construction begins, detailed drawings are required to clearly communicate the proposed patio design.
Depending on the complexity of the project, architectural drawings may be prepared by an architect, building designer or qualified drafting professional.
Patio drawings typically include:
Site plan
Floor plan
Roof plan
Elevations
Structural details
Construction specifications
The Patio & Shed Co. can assist with preparing suitable documentation for patio approval and construction, ensuring the design considers both practical requirements and structural compliance.
Do I Need Council Approval for a Patio in Perth?
One of the most common questions homeowners ask is:
"Do I need council approval for my patio in Perth?"
In Western Australia, most permanent patio structures require a building permit before construction can commence.
Approval requirements may vary depending on:
The size of the patio
The location on the property
Boundary setbacks
Local planning requirements
Existing structures
Heritage or special control areas
If your patio is proposed close to a boundary or within a restricted outdoor area, it is recommended that council requirements are reviewed before finalising your design.
The Patio & Shed Co. can assist with the documentation required for building approval and help simplify the approval process.
Patio Structural Engineering Perth
A patio is classified as a Class 10 structure under the National Construction Code (NCC).
Structural engineering is required to ensure the patio has been designed to safely resist the expected loads, including:
Wind actions
Dead loads
Roof loads
Connection forces
Foundation requirements
Our certified structural engineering drawings are prepared in accordance with the requirements of the National Construction Code and relevant Australian Standards.
Engineering documentation may include:
Structural plans
Patio framing details
Connection details
Footing requirements
Construction specifications
Every patio is individually designed based on the site location, structural requirements and proposed materials.
Our certified engineering drawings are suitable for council submission and include the architectural plan view and elevations.

Patio Wind Design Requirements in Perth
Perth experiences significant wind conditions, particularly in exposed coastal suburbs and elevated locations.
A correctly engineered patio must consider the wind classification and site-specific conditions applicable to the property.
Structural design considerations include:
Column sizing
Beam and rafter capacity
Roof connection details
Footing design
Fixing requirements
A professionally engineered patio provides confidence that the structure has been designed specifically for your property.
Patio Site Preparation and Construction Requirements
Whether you are building a patio yourself or engaging a professional patio builder in Perth, proper site preparation is critical.
Earthworks and site preparation should generally be completed in accordance with AS 3798 – Guidelines on Earthworks for Commercial and Residential Developments.
Site preparation may include:
Removal of organic material and unsuitable soils
Removal of trees, roots and construction debris
Placement of suitable compacted fill
Verification of compaction levels
A compaction test certificate may be required before concrete footings are installed. This provides quality assurance that the ground conditions are suitable for supporting the proposed patio structure.
Check Existing Services Before Building a Patio
Before construction begins, it is important to understand the location of existing services around the property.
This includes:
Underground sewer lines
Stormwater systems
Reticulation
Electrical services
Gas services
Property boundaries
A Dial Before You Dig (DBYD) enquiry should generally be completed before excavation works commence.
Understanding existing services early in the process helps avoid delays and unexpected construction issues.
Patio Drainage Requirements Perth
Drainage is an important consideration when designing a new patio.
A roofed outdoor area changes the way water is collected and discharged around your property.
Depending on:
Soil classification
Roof area
Patio location
Existing drainage systems
Stormwater may need to be managed through:
Gutters
Downpipes
Soakwells
Existing drainage systems
Proper drainage design helps protect your home and patio structure from water-related issues.
Patio Council Approval Process Perth
There are generally two pathways for obtaining building approval in Western Australia:
Certified Building Permit Application
A certified application includes a Certificate of Design Compliance (CDC) prepared by an independent building surveyor. The application is submitted to the relevant permit authority together with the required documentation.
Uncertified Building Permit Application
An uncertified application is submitted directly to the local council or Shire.
The permit authority will arrange for the proposal to be assessed and a Certificate of Design Compliance issued. The approval timeframe depends on the application type and completeness of the submitted documentation.
The Patio & Shed Co. can assist with preparing documentation and coordinating the approval process.
Patio Construction Perth
Once approvals are complete, construction can begin.
A typical patio construction process includes:
Finalising design and engineering documentation
Fabrication of patio components
Delivery of materials to site
Excavation for footings
Installation of brackets and structural connections
Installation of columns, beams, rafters and battens
Installation of roofing materials
Installation of gutters and downpipes
Final inspection and completion
When connecting a patio to an existing residence, several connection methods may be considered, including:
Rafter brackets
Structural connections to existing masonry walls
Independent support structures
The appropriate connection method depends on the existing building structure and engineering requirements.
How Much Does a Patio Cost in Perth?
The cost of building a patio in Perth depends on several factors, including:
Patio size
Design complexity
Materials selected
Roofing system
Site conditions
Engineering requirements
Council approval requirements
A small basic patio will generally cost significantly less than a large custom-designed outdoor entertaining structure. The best way to understand the cost of your project is to prepare a design and detailed scope of works.
The Patio & Shed Co. can assist with creating a solution that meets your budget, design expectations and approval requirements.
Why Choose The Patio & Shed Co.?
Choosing the right patio builder in Perth is important to ensure your project is completed safely, efficiently and in accordance with Australian requirements.
Our team can assist with:
Custom patio design
Structural engineering
Council approval documentation
Patio construction
Class 10 structures
Perth residential projects
Our integrated approach means you can access professional guidance from initial concept through to completion.
Frequently Asked Questions
Do I need engineering drawings for a patio in Perth?
Yes. Most permanent patio structures require structural engineering documentation to demonstrate compliance with the National Construction Code and Australian Standards.
How long does patio approval take in Perth?
Approval timeframes depend on whether a certified or uncertified application is submitted and whether the documentation is complete.
Can you design and build a patio in Perth?
Yes. The Patio & Shed Co. can assist with patio design, engineering, approval documentation and construction.
What type of patio is best for Perth weather?
The best patio design depends on your property, budget and intended use. Steel-framed patios, insulated patios and custom outdoor structures are popular options throughout Perth.
Do patios increase property value?
A well-designed patio can improve outdoor functionality and may increase the appeal and value of a property by creating additional usable living space.
Contact The Patio & Shed Co. for Your Perth Patio Project
If you are planning a new patio, pergola, shed or outdoor structure, our team can help you understand the design, engineering and approval requirements.
Contact The Patio & Shed Co. today to discuss your project and receive guidance on the next steps for your Perth patio.



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