A building designer creates custom home designs, renovation plans, extensions, and detailed construction drawings for residential and commercial projects. Unlike a draftsman who may focus only on technical drawings, a building designer provides design concepts, space planning, compliance knowledge, and council-ready documentation tailored to your site, budget, and lifestyle.

A building designer specialises in practical, cost-effective residential and small commercial projects, while architects often work on larger or more complex developments. For most homes, extensions, renovations, and duplex projects in Brisbane, a qualified building designer can provide fully compliant, council-ready plans at a more affordable price point.

Building design costs vary depending on project size and complexity.

• Small renovations or decks: From $2,000–$5,000

• Home extensions: $5,000–$12,000

• New custom homes: Typically 3–8% of the estimated build cost.

We provide tailored quotes based on your specific project requirements.

Most structural changes, extensions, new homes, and secondary dwellings in Brisbane require council approval. We prepare council-ready drawings and can guide you through the development application (DA) or building approval (BA) process to ensure your project complies with local regulations.

Yes. We specialise in custom home designs tailored to your block’s size, slope, orientation, and local council requirements. Whether you have a narrow lot, sloping block, or corner site, we design homes that maximise space, natural light, and resale value.

We offer both drafting services and complete building design packages. If you already have a concept, we can produce professional construction drawings. If you’re starting from scratch, we can develop concept designs, 3D visualisations, and full working drawings ready for builders and certifiers.

Timeframes depend on project size and complexity.

• Small projects: 2–4 weeks

• Extensions or renovations: 4–6 weeks

• New custom homes: 4–6 weeks

Council approvals may add additional time depending on requirements.

Yes. We specialise in renovation and extension plans that integrate seamlessly with your existing home. We can conduct site measurements, prepare as-built drawings, and design improvements that increase functionality and property value.

Absolutely. We collaborate closely with builders, engineers, certifiers, and town planners to ensure your plans are practical, cost-effective, and ready for construction. We can also modify plans to suit your chosen builder’s requirements.

To get started, it helps to have:

• Property address and site details

• Budget range

• Inspiration images or ideas

• A wish list of rooms and features

• Any existing plans or surveys

If you’re unsure, we can guide you through the process during your initial consultation.

Yes. We design duplexes, dual occupancies, and granny flats that comply with local Brisbane planning regulations. We ensure layouts maximise rental return, privacy, and long-term value.