Belconnen ACT 2617
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At Builder Canberra, we don’t only build extensions. We create the space your family needs to grow, feel happy, and call home. If you want a trusted and skilled builder to change your current property with a custom addition, you have come to the right place.
Whether you are a homeowner who needs more space or a property owner who wants to add value, our team is trusted all over Canberra. We provide good quality home extensions that meet council rules and are designed for the local lifestyle and weather.
We have many home extension options around Canberra and nearby areas:
You can double your living space and still keep your outdoor areas. A second floor is great for families who need more bedrooms, an extra bathroom, or a quiet study area. We take care of strengthening the structure, adding stairs, and changing the roof in a careful way.
Add the extra bedroom, playroom, or family room that you need. We will work closely with you to design a layout that fits perfectly with your home.
Make your kitchen an open space that stands out. We help with everything from removing walls to redesigning the layout. Our goal is to create modern and practical kitchens for families in Canberra. These kitchens are perfect for cooking, having guests, and spending time together.
Do you need a private space for parents, adult children, or tenants? We create complete granny flats and studios. They follow all ACT building rules and privacy needs. These spaces are perfect for living with different generations or making extra money.
Transform your unused garage into a home office, studio, bedroom, or entertainment space. Converting a garage is a good way to create new living areas without much construction work.
Enjoy Canberra’s lovely spring and summer by having a covered outdoor space. We create custom patios, pergolas, and alfresco areas that are great for outdoor gatherings.
Yes, in most cases, you will need either a Development Application (DA) or Building Approval (BA) from your local council. Canberra has strict planning regulations, and all extensions must comply with the ACT Planning and Land Authority (ACTPLA) guidelines. At Builder Canberra, we manage the entire approval process for you, ensuring your extension meets all requirements.
The timeline depends on the type and complexity of the extension. On average:
Small extensions (e.g. garage conversion or room addition): 8–12 weeks
Medium extensions (e.g. kitchen or living area extension): 10–16 weeks
Large or second storey additions: 16–24+ weeks
This includes time for design, council approvals, and construction. We provide a detailed timeline after your consultation.
Based on our experience, the most in-demand extensions in Canberra include:
Second storey additions for growing families
Granny flats for multigenerational living or rental income
Kitchen and open-plan living extensions for lifestyle upgrades
Room additions to create a study, playroom, or guest room
Garage conversions to maximise internal space without major structural changes
Costs vary based on design, materials, size, and access to the site. As a general guide:
Garage conversions start from $40,000+
Room or kitchen extensions typically range from $70,000–$150,000
Second storey additions may cost $180,000–$350,000+
Granny flats generally start from $120,000
We provide a detailed, fixed-price quote after consultation and design discussions.
It’s simple. Just call us or fill out our online enquiry form to book your free consultation. One of our local experts will visit your home, discuss your needs, and guide you through your best options — with no obligation.
Canberra has hot, dry summers and cold winters. This change in weather needs to be considered in every project. We focus on how well buildings keep heat, using good materials and insulation. This helps to lower your heating and cooling bills over time. It is very important for building approvals in ACT.
We also know how to handle Canberra council approvals, including:
With us, you don’t have to chase paperwork. We handle all council submissions for you.
Builder Canberra looks after every detail from your first ideas to the final handover. Here’s how we keep it simple for you:
We come to your home to learn about your goals. We check the site and give you honest advice on what can be done within your budget and time frame.
Team up with our architects and draftspeople to create ideas that show your vision. We mix creativity and practicality to achieve results that are affordable and last a long time.
We take care of all ACT approval steps and paperwork. This way, you don’t need to worry about any red tape or rules.
Your addition is made by skilled builders from Canberra. They use good materials that fit the weather. We make sure to keep you informed at every stage. A project manager will be there on-site for you.
Once the build is done, we will guide you through all parts of the finished project. We will also make sure it meets ACT standards. Finally, we will leave your site clean and good for living.
Planning your home extension in Canberra is crucial. It helps you avoid costly errors. Having the correct permits and understanding
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