Add the space your family needs without leaving the street you chose, with an extension builder who handles the structure and the approvals.
Extending usually beats moving. You stay in the street you chose, and the money goes into the part of the house you actually use. What you need is a builder who can join new work to old without it looking like an afterthought.
Tom Robilliard oversees your project and remains your main point of contact from the first conversation through to handover. A dedicated foreman runs the day-to-day build, supported by our team of skilled builders and carpenters.
You’ll have regular site meetings, monthly progress reports and 24/7 access to our building software, where you can view photos, costs and selections. At handover, you’ll receive a detailed walkthrough and a customised home manual, followed by 12 months of maintenance support to ensure everything performs as it should.
Anyone can add a room. The work that separates a good extension from an obvious one is where it meets the existing house. Roof lines. Floor levels. Ceiling heights. Whether the new windows read as part of the same building. We plan those details with your designer before construction rather than resolving them on site with the frame already up.
Extensions also carry more engineering and more council involvement than most owners expect. A second storey means the existing footings and frame need assessing. Coastal sites bring wind loading. Setbacks, height limits and overlays shape what you are allowed to build at all. We bring engineers and your design team in early so the plans you commit to are plans that can be approved and built.
Before you sign, you get concept plans and a cost estimate, then finalised plans, a detailed quote and a construction schedule with milestones. We will be honest about approval timeframes rather than quoting the version everyone hopes for.
T Casa Projects extends, renovates and builds homes across Noosa and the surrounding Sunshine Coast. Founder Tom Robilliard has 16 years in construction and has lived in the Noosa area for more than 20 years.
We work from Noosa Heads through Sunshine Beach, Marcus Beach, Peregian Beach, Coolum Beach, Marcoola, Eumundi, Cooroy, Pomona and Doonan.
QBCC licence 15455661.
ABN 71 675 028 181.
We begin with a simple conversation. During this session, we’ll explore your reasons for starting the project, your vision, your preferences, and address any questions you may have.
If you have not yet engaged other professionals, we can discuss collaborating with the team of trusted Architects, Building Designers, and Interior Designers that we have hand-selected to work with our clients.
If you’ve already got preliminary plans in place, we’re excited to work alongside your chosen team. Please send them through before our Initial Meeting so we can review them thoroughly.
Here we meet on-site to delve deeper into your ideas and preferences, review concepts, and discuss any specific site details. It is a valuable opportunity to strengthen our understanding of your vision and ensure it is integrated moving forward.
We provide a Preliminary Agreement for signing, which will allow us to prepare all of the documents required in the pre-construction phase.
This is where your vision starts to come to life with initial concept plans. We will provide you with an estimate of costs and continue to refine the details while communicating with the Design team to prepare schedules for the project.
Once the concept is refined and approved, we’ll move into finalising the plans. At this stage, we’ll present a detailed, transparent quote that breaks down all costs involved in the build. We’ll also outline a clear construction schedule, including key milestones and timeframes, so you’ll know exactly what to expect throughout the process. This ensures you have a complete understanding of the journey ahead
With the plans and details confirmed, it’s time to formalise everything. The final contract and fee schedule will be signed, ensuring all parties are aligned and committed to the agreed terms. This step is designed to give you peace of mind and confidence as we move forward with your project.
Now comes the exciting part—building your dream home or space! Our skilled team will bring the vision to life, handling every detail with care and precision. Tom will be your main point of contact, keeping you informed every step of the way. Regular updates and progress reports will be provided, and we’ll organise site meetings so you can see the transformation in person. This collaborative process ensures you’re fully involved and can enjoy the thrill of seeing your project come together.
The moment you have been waiting for – the build is complete! Once construction is finished, we’ll organise a final walkthrough to ensure every corner reflects the vision of your dream project.
Three commitments we make to every client, and how we deliver on them.
We plan how the site is set up before work starts, so noise, dust and mess are contained and the parts of the house not under construction stay protected. Work areas are secured at the end of each day, and we agree access and working hours with you upfront so there are no surprises once the crew is on site.
Approvals are the least predictable part of an extension, so we tell you what is realistic for your council and your site rather than an optimistic early estimate. We lodge early and keep the design and pre-construction work moving while the application sits.
Roof lines, floor levels, ceiling heights and window proportions decide whether an extension looks original or added on. We resolve those details with your designer before the frame goes up, and our carpenters build the junctions where the two meet.
It depends on the condition of the existing home and how much you want to keep. Extending usually costs less than a full rebuild and keeps you in the same location. We will give you a considered view at the site meeting.
An engineer assesses the existing footings and frame early in the process. We arrange that during pre-construction so you know what is possible before committing to a design.
Cost is driven by the size of the addition, the structural work needed below it and the finish level. You receive a cost estimate at concept stage and a detailed quote before contract, with a construction schedule alongside it.
It varies by council and site, and it is the least predictable part of the project. We will tell you what is realistic rather than the best case.
Yes, and it is often the better approach. One contract avoids paying twice for site setup, scaffolding and trades.
Tell us about your home and what you want to change, and we will walk you through what is involved.