Structural engineering and construction requirements - Building a brick wall or fence in Australia
- Engineering Plans Team
- 3 days ago
- 8 min read
Are you looking to add value, security, and privacy to your property? Constructing a brick fence or limestone screen wall is a fantastic, durable solution. At Engineering Plans Australia (EPA), we specialize in providing certified structural engineering drawings for all residential fencing types, whether you are building with brick, limestone, or concrete masonry. All of our structural drawings are fully optimized for local council approval right here in Perth and across Western Australia.
To determine the best fencing style for your property, start by defining its primary purpose—whether that is modern aesthetics, street appeal, security, or noise reduction. Once you have a vision, we recommend collaborating with a local architect or building designer to develop your initial concept drawings. Your concepts should feature detailed elevation and plan views, along with clear dimensions and material selections. These architectural sketches are essential, as they form the foundation for our structural engineering design process, your local Perth council approval submission, and accurate builder cost estimations.
In some situations, the brick screen wall may be constructed on top of a retaining structure such as a limestone retaining wall. Creating a unique look can be achieved through a wide selection of brick choices, detailing brick rebates and by rendering. There is also the option of constructing the screen wall using limestone blocks.
Standard engineering details can significantly reduce the cost of engineering for common structures such as a brick fence and provide the documentation in a short time frame. Engineering Plans Australia offers the convenience to order structural engineering details online which in most cases can be provided within 48 hours for basic project in Perth.
The Council Approvals Process for Perth Fences & Walls
When preparing a development application or building permit in Western Australia, collaborating with the right team is essential. Depending on your site, your project may require a draftsperson, a licensed land surveyor, and a chartered structural engineer.
The process moves through a few stages:
Concept Design:Â First, you will need a concept sketch showing the front, side, and rear elevations, natural ground levels, proposed finished levels, and the exact dimensions of the brick wall.
Site Feature Survey:Â In most circumstances, a local council will require a feature survey. Appointing a Licensed Land Surveyor to prepare a Contour or Topographic Survey ensures all existing site features, boundaries, and adjacent structures are accurately mapped. This data is vital, as it allows your structural engineer and builder to assess the site safely and produce compliant construction documentation.
Local Government Consultation:Â Once your sketches and survey are ready, review the specific Local Planning Schemes (LPS) and Residential Design Codes (R-Codes) for your specific Perth LGA (Local Government Authority), such as the City of Joondalup, City of Stirling, or City of Melville.
While every Western Australian council has localized guidelines regarding height restrictions and street setbacks, they all require certified structural engineering details before issuing a building permit. Consulting with Engineering Plans Australia early in the design phase ensures your structural drawings seamlessly meet both council compliance and your builder's requirements.
Our Structural Engineering & Certification Process
At Engineering Plans Australia, we have streamlined the structural engineering and certification process by standardising our engineering details. Our online store allows you to purchase certified standard drawings saving you significant time and design fees.
For every project, our rigorous quality assurance process ensures that the standard detail is perfectly suited to your specific Perth location and local wind loading requirements.
Retaining Wall Inspections & Engineering Certification
In Western Australia, it is highly common to build a brick fence on top of an existing boundary wall. If your proposed brick screen wall is to be constructed on top of a retaining structure, such as a limestone retaining wall, you must undertake a professional retaining wall inspection. We can assess and provide the structural engineering certification required by your local council to prove the existing wall is structurally adequate to bear the new load.
Perth Soil Classifications & Wind Ratings
Soil conditions vary widely across the Perth metropolitan area, ranging from the clean, free-draining sands of the Swan Coastal Plain to the highly reactive ironstone clays found in the Perth Hills. Because of this, a site-specific geotechnical report or soil classification should be obtained in accordance with AS2870 (Residential Slabs and Footings). Furthermore, the structural integrity of your fence depends on its piers (either square or attached). The exact spacing of these piers is determined by the overall weight of the masonry and your property's specific wind classification.
Below is a sample structural engineering detail for a typical Perth brick screen wall with square piers and visually permeable infill, engineered specifically for a standard sand site:
Perth Soil Classification, Compaction Testing & Footing Design
Most Perth local Councils require a certified site classification report in accordance with AS2870Â and a compaction test certificate before approving a building permit.
While a large portion of the Perth metropolitan area consists of stable, free-draining sand (Class A sites), many developments particularly in the Perth Hills, foothills, and parts of the Swan Valley sit on reactive clays.
Designing Footings for Reactive Clay Sites in Perth Metro Area
If your proposed brick fence is located on a reactive clay site, the concrete footings must be engineered on a case-by-case basis. The most common structural issues with brickwork on clay soils stem from ground movement caused by seasonal moisture changes (swelling in winter, shrinking in summer). This movement creates ground stress that can cause severe cracking in masonry.
To ensure your brick wall performs adequately over time, our engineering team assesses the soil properties from your geotechnical report to design the optimal footing depth and steel reinforcement configuration:
Class A Sites (Most Perth Sandy Sites):Â The strip footing depth can typically be reduced to a standard 300mm deep.
Class S Sites (Slightly Reactive):Â The strip footing depth generally requires a minimum of 400mm deep.
Class M Sites (Moderately Reactive Clay): The footing depth typically increases to approximately 600mm deep to anchor the structure below the zone of seasonal moisture change.
Additionally, the exact dimensions of the pad footings at your brick pier locations will depend on the specific wind loading zone of your Perth property. Engineering Plans Australia ensures your footing designs are fully customized to your site's soil profile, guaranteeing structural adequcy and seamless council approval.
Another important consideration in the suitability of trees when they are planted close to brick walls. The possibility that their root systems causing structural damage may need to include additional engineering measures such as tree root barriers.
Brick Fence Construction Costs & Process in Perth
How much does it cost to build a brick screen wall or fence in Perth? Depending on your choice of materials, wall height, and specific site conditions, local construction costs in Western Australia typically range from $500 to $1,500 per linear metre. Choosing between traditional clay bricks or reconstituted limestone blocks will also influence your overall budget. To keep your project economical, obtaining a site-specific soil classification ensures your footings are sized perfectly without over-engineering. At Engineering Plans Australia, our pre-certified structural drawings are designed to minimize unnecessary construction costs while ensuring total safety.
Hiring the Right Team in Perth
It is vital that your construction work is undertaken by an experienced bricklayer or builder who carries appropriate insurances and works strictly in accordance with your structural engineering documentation and building permit conditions. If required, our team can recommend trusted local contractors in Perth to assist with your construction, ensuring the job is completed to the highest workmanship standards.
Critical Engineering Inspection Stages
When building a new masonry screen wall, you may require a qualified structural engineer to carry out site inspections during critical stages of the build to sign off on council compliance. These stages typically include:
Compaction Testing:Â Verifying the subgrade sand is properly prepared and issuing a formal compaction test certificate.
Steel Reinforcement Inspection:Â Inspecting the footings just after the steel rebar has been installed to confirm via a written report that the steel reinforcement matches the structural engineering specifications before concrete is poured.
Final Structural Sign-Off:Â Assessing the completed masonry structure to ensure it complies with all safety codes.
Perth Coastal Environment Considerations
Perth’s extensive coastline introduces unique environmental challenges for masonry structures. If you are building a brick wall in a coastal zone (such as Fremantle, Scarborough, or Sorrento), the National Construction Code (NCC) mandates strict requirements for mortar specifications and corrosion protection for steel components. Utilizing the correct exposure-grade materials ensures maximum durability against salt spray and coastal wind loads.
How EPA Works:
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Step 1: Commission an architect to produce architectural plans for the proposed brick fence;
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Step 2: Consult with the relevant local government authority in relation to the building permit application;
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Step 3: Complete the site contact form on our website where you can also upload your site plan and architectural drawings;
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Step 4: One of our structural engineers will review the documentation provided and confirm the cost for the engineering certification and advise if additional documentation is required;
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Step 5: Order the standard structural engineering drawings online and receive your certified structural engineering drawings within approximlatey 48 hours ready for building permit submission.
A brick fence can be a wonderful addition to a property and there are a wide range of options and materials available for constructing the fence. While clay brick and limestone blocks screen walls are common, we are also seeing increased popularity with concrete blocks fences. In some situations the brick fence can be integrated with a brick or limestone retaining wall.
Council Approval & Compliance in Perth
Before laying the first brick, navigating local WA council regulations is crucial. In Perth, most local government authorities (LGAs) require a development application or a building permit for any front fence or brick screen wall over a specific height—typically exceeding 1.2 to 1.8 metres, depending on your specific council's local planning policies and visual permeability guidelines.
To secure council approval smoothly, you must submit architectural sketches alongside certified structural engineering details that comply with the National Construction Code (NCC) and Australian Standards like AS3700 (Masonry Structures). Failing to provide certified engineering documentation can lead to costly council delays or structurally unsafe builds, especially in Perth’s high-wind coastal zones.
To save time and avoid expensive custom engineering design fees, you can buy certified brick screen wall plans online directly from our digital store. Our pre-certified, standard structural engineering drawings are fully compliant with WA building standards and come ready for immediate submission to your local Perth council.
If you have any questions regarding a proposed brick fence or other structural engineering requirements, get in touch with us to discuss your requirements with one of our structural engineers and to obtain a free quote.
Frequently Asked Questions (FAQs)
Do I need council approval for a brick fence in Perth?
Generally, yes. Most Perth local councils require a building permit or development application if a front fence or screen wall exceeds 1.2 to 1.8 metres in height, or if it impacts street visibility codes. Always check your specific LGA guidelines.
What is the standard footing depth for a brick wall on Perth sand?
For a standard Class A sand site, which covers most coastal and metro Perth, a strip footing depth of 300mm is typically sufficient. However, reactive clay sites in areas like the Perth Hills require deeper footings (up to 600mm).
Can you build a brick wall on top of an existing limestone retaining wall?
Yes, but you will need a structural engineering inspection first. An engineer must certify that the existing limestone wall has the structural adequacy to support the weight and wind load of the new brick fence before council will approve it.
Engineering Plans Australia
Perth WA
visit our website: https://www.engineeringplans.com.au/