Under Construction
Renovation Camp Hill
Camp Hill 1
A new extension and internal renovation of a post-war home on a sloping site impacted by flood overlay and designed to seamlessly integrate with the existing structure.
House Extension Plans
for Brisbane Homes
Expert building design plans for house extensions in Brisbane. Whether you need extra living space, additional bedrooms, or a complete home transformation, we create extension plans that seamlessly integrate with your existing home.
Our experienced Brisbane building designers understand local council requirements and create approval-ready plans that maximise your property's potential while respecting your existing home's character.
Types of House Extension Plans
We design all types of house extensions for Brisbane homes. Each extension is custom-designed to suit your property, lifestyle needs, and budget.
Rear Extensions
Extend your home into the backyard with open-plan living, kitchen, and dining areas that connect seamlessly with outdoor spaces.
Side Extensions
Utilize side setback areas for additional rooms, hallways, or to widen existing spaces in your Brisbane home.
Second Storey Additions
Add a complete upper level to your home with bedrooms, bathrooms, and living spaces without losing yard area.
Room Additions
Single room extensions for extra bedrooms, home offices, living rooms, or master suites with ensuites.
Why Choose House Extension Plans?
House extensions offer a practical solution for Brisbane families who need more space but love their location. Our extension plans help you transform your existing home into your dream home.
More Space Without Moving
Stay in the suburb you love while gaining the extra space your family needs. Avoid stamp duty, moving costs, and the stress of changing schools.
Increase Property Value
Well-designed extensions add significant value to Brisbane properties, often delivering strong returns on your investment.
Modern Living Spaces
Update your home with contemporary open-plan living, better natural light, and improved connection to outdoor areas.
Customised to Your Needs
Unlike buying a new home, an extension is designed specifically for your family, lifestyle, and how you use your home.
Our Extension Design Process
From initial concept to approval-ready plans, we guide you through every step of your house extension project.
Site Assessment
We visit your property to assess the existing structure, measure the site, and understand your extension goals and budget.
Concept Design
We develop concept plans showing how your extension integrates with your existing home, including floor plans and 3D visualisations.
Council Requirements
We ensure your extension plans comply with Brisbane City Council requirements, setbacks, site cover, and any overlay codes.
Construction Plans
We produce detailed construction plans ready for building approval and builder quoting, including all required specifications.
House Extension Projects
Recent home extension and addition projects from our portfolio
In Progress
Renovation Murarrie
Murarrie 1
An external renovation opening the existing alfresco and pool areas, with new insulated patio roof for improved comfort.
In Progress
Renovation Carina Heights
Carina Heights 1
In-progress Carina Heights home renovation design — Brisbane building design with planning and approval documentation.
House Extension FAQs
Common questions about house extension plans in Brisbane
How much does it cost to get extension plans?
Extension plan costs vary based on the complexity and size of your project. We provide a fixed quote after our initial consultation so you know the design costs upfront before proceeding.
Do I need council approval for a house extension?
Most house extensions in Brisbane need a Building Approval (BA). A Development Approval (DA) may also be required if the extension breaches the boundary setbacks or site cover limits in Brisbane City Plan 2014, or if your home is pre-1946 and within the Traditional Building Character Overlay. Smaller, compliant additions can sometimes proceed as accepted development. We confirm which approvals apply during your initial consultation.
Can you match the extension to my existing home?
Yes, we design extensions that complement your existing home style, whether it is a Queenslander, post-war, or modern home. We consider rooflines, materials, and proportions for a seamless result.
How long does the extension planning process take?
This depends on project scope, size and complexity. Smaller projects typically take 3-6 months, while complex site or character homes can take 6-12 months as additional times is required for council lodgements and infrastructure owner approvals.
Can you design for sloping blocks?
Yes, we have extensive experience designing extensions for Brisbane sloping sites. We work with the natural topography to minimise earthworks while maximising your living space.
Ready to Discuss Your House Extension Plans?
Contact us for a consultation about extending your Brisbane home.
We design homes to be more than spaces - they are created for you to live in and truly enjoy.