About Casa Design Co

We’re Ellie and Isaac - high school sweethearts, design obsessives, and the heart behind Casa Design Co.

After running a residential building company together for years, we realised the work we truly loved happened before the slab was poured. We didn’t just want to construct homes, we wanted to create them from the inside out. So we pivoted, brought together our complementary skills (creative direction + technical mind), and launched a studio that blends design thinking with buildable outcomes.

At CASA, every plan begins with your life in mind and is shaped to support it beautifully.

Now, we help homeowners across Newcastle, Lake Macquarie, Central Coast, Hunter Valley, Port Stephens, Dungog and beyond bring their lifestyle to life through considered, personalised design.

What makes us different?

Casa Design Co was built to be personal, considered, and grounded in what really matters;
creating homes that feel like home.

What sets us apart isn’t just our aesthetic (though yes, we love a good aesthetic design). It’s the way we think, collaborate, and problem solve, because we’ve been on both sides of the build.

Here’s how we approach things differently:

  • We know how homes are built. With years of construction experience under our belt, we design with a builder’s brain, avoiding unnecessary complexities, reducing surprises, and thinking practically from the start.

  • We don’t pass you around. You’ll work directly with us, Ellie and Isaac. That means consistent communication, full transparency, and a design process that feels collaborative, not confusing.

  • We design for real life. Our plans are rooted in how you actually live, zoned for function, styled for flow, and always aligned with your lifestyle.

  • We understand approvals. We’re across the legislation, documentation, and local council requirements, so we design with these in mind from day one, not as an afterthought.

  • We’re small by choice. Every project we take on gets our full attention, creative energy, and hands-on problem solving. You’re never just a job number with us.

At CASA, we care just as much about how a home works as how it looks. It’s why we design with soul and structure, bringing beauty, clarity, and buildability into every detail, and designing the way you want to live now, and for years to come.

Modern two-story house at night with exterior lighting, stone accent wall, garage, and large front windows, surrounded by landscaping.

Get In Touch!

Looking for a residential building designer who gets both the creative and the construction side?
We’d love to help shape your next chapter.


Please fill out the form or reach us via:

hello@casadesignco.com.au

0437 366 599