When you start planning a renovation on the Gold Coast, one of the first decisions you’ll face is which professional to hire. And it’s genuinely confusing — search for “renovation designer” and you’ll see interior designers, building designers, architects, and even renovation builders all competing for your attention.
They are not the same thing. Hiring the wrong one can cost you tens of thousands of dollars in redesign, delays, or construction problems that should have been solved on paper.
Here’s how to work out which professional your renovation actually needs.
A renovation designer — specifically a licensed building designer — takes your existing home and produces construction-ready documentation that a builder can price and build from. This includes structural plans, sections, elevations, specifications, demolition notes, and compliance documentation for council and building approval.
Renovation design is fundamentally different from new home design. You’re working with existing walls (some load-bearing, some not), existing roof lines that need to integrate with new work, existing services that need rerouting, and floor levels that might not be where you expect them. Getting any of this wrong at the design stage means expensive changes on site.
A renovation designer with construction experience understands these complexities because they’ve dealt with them on actual building sites — not just in software.
On the Gold Coast, a renovation designer is licensed through the QBCC (Queensland Building and Construction Commission) and produces the technical documentation required for building approval.
An interior designer focuses on the look, feel, and functionality of interior spaces. They select materials, colours, fixtures, furniture, and finishes. They create mood boards, specify products, and coordinate the aesthetic vision for your renovation.
What most interior designers don’t do is produce structural documentation. They won’t assess whether a wall is load-bearing, calculate setbacks for council compliance, detail how new work connects to existing framing, or produce the construction drawings your builder needs to quote accurately.
If your renovation is purely cosmetic — new kitchen finishes, bathroom tiles, paint colours, furniture layout — an interior designer may be all you need.
If your renovation involves any structural changes, wall removal, extensions, second-storey additions, or changes that require building approval, you need a building designer or architect before you need an interior designer.
Architects complete a five-year university degree and are registered through the Board of Architects Queensland. They can design renovations and produce construction documentation, and many architects do excellent residential renovation work.
The differences between an architect and a building designer for renovations come down to approach, experience, and cost.
Architectural training emphasises design theory, spatial concepts, and aesthetic innovation. This produces outstanding results for complex or high-end projects where design ambition is the priority.
Building designers — particularly those with construction backgrounds — tend to approach renovations from a buildability and cost perspective first. How will this actually be built? What will it cost? Where will the builder run into problems?
For most Gold Coast residential renovations — extensions, kitchen and bathroom reconfigurations, second-storey additions, whole-house transformations — a building designer with real construction experience delivers practical, buildable documentation at a lower fee point than most architectural firms.
Neither choice is universally better. It depends on your project scope, budget, and priorities.
Read our full comparison of building designers vs architects
Here’s the thing that catches people out: the biggest risk in any renovation isn’t the design or the builder — it’s the gap between what gets drawn and what gets built.
Most designers work from theory. They design spaces that look good on screen but have never stood on a demolition site watching a builder discover that the plans didn’t account for existing services, structural inadequacy, or construction sequencing.
When those plans hit the real world, the budget blows out. Builders pad their quotes with allowances because the documentation isn’t detailed enough for accurate pricing. Variations stack up because problems that should have been solved at design stage are discovered during construction.
A renovation designer who has actually been the builder — who has read someone else’s inadequate plans and had to make it work on site — produces fundamentally different documentation. Every detail accounts for how the renovation will actually be built, what it will actually cost, and what problems the builder will encounter.
This is what “construction-informed design” means. It’s not a marketing phrase — it’s the difference between a renovation that stays on budget and one that doesn’t.
You need an interior designer if:
Your renovation is cosmetic — finishes, fixtures, furniture, colour schemes — with no structural changes or building approval required.
You need an architect if:
Your renovation is architecturally complex, involves heritage considerations, or you’re prioritising design innovation and have the budget to match.
You need a renovation designer (building designer) if:
Your renovation involves structural changes, extensions, layout reconfiguration, second-storey additions, or any work requiring building approval — and you want construction-ready documentation that keeps the project on budget.
You need a renovation designer with construction experience if:
You want all of the above, plus the confidence that your plans have been designed by someone who understands what builders actually encounter on renovation sites. This is the combination that prevents budget blowouts and construction surprises.
When evaluating renovation designers on the Gold Coast, ask these questions:
Are you QBCC licensed as a building designer? This is non-negotiable for any renovation involving structural work or building approval. Check their licence number on the QBCC online search.
Do you have construction or building experience? A designer who has worked on building sites understands the practical realities that affect your renovation cost and timeline.
Can I see examples of your construction documentation? Detailed plans with full dimensions, material specifications, demolition notes, and structural references are what your builder needs to quote accurately. Ask to see a sample set.
How do you handle council and compliance? Your renovation designer should integrate compliance into the design process from day one — not treat it as an afterthought.
Learn more about how much a building designer costs on the Gold Coast
I’m David Steadman, and I hold both a QBCC Builder’s licence and a QBCC Building Designer’s licence — a combination that less than one percent of professionals nationally can claim. Before I became a building designer, I spent over a decade as a licensed builder on Gold Coast construction and renovation projects.
That construction background is what sets my renovation designs apart. Every plan I produce accounts for how it will actually be built, what it will actually cost, and what problems a builder will encounter on site.
If you’re planning a renovation on the Gold Coast and want documentation your builder can price with confidence, I’d welcome the opportunity to discuss your project.
If your project involves structural changes, extensions, or council approvals, a renovation designer is the right starting point. Learn more about our renovation design process and what to expect at each stage.
Frequently Asked Questions
A renovation designer (building designer) produces structural plans and construction documentation for building approval. An interior designer focuses on aesthetics — materials, colours, fixtures, and furniture. If your renovation involves structural changes, you need a building designer before an interior designer.
For most residential renovations — extensions, layout changes, second-storey additions — a building designer with construction experience delivers practical, buildable plans at a lower fee than most architectural firms. Architects are ideal for complex or design-driven projects where innovation is the priority.
Renovation design fees on the Gold Coast typically run 4–7% of the construction cost, starting from $3,000. An initial consultation is $280 and includes an honest assessment of your project scope, likely costs, and timeline. The consultation fee is credited if you proceed to design.
David Steadman
Licensed Builder & Building Designer
David Steadman is the founder of Design Science, a Gold Coast building design practice backed by over 30 years of hands-on construction experience. One of few Australians holding both a QBCC Builder's Licence and Building Designer licence, David brings a rare combination of design thinking and practical building knowledge to every project.
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