Building Designer Wollongong

Designing Refined Coastal Homes

Serving clients from Sydney, Illawarra, the South Coast and NSW

White modern house with a pool and greenery — SDC Building Design In Kiama, NSW

Professional Building Design Solutions

SDC Building Design creates refined coastal homes for clients across NSW, including Sydney, Kiama, Illawarra, Shellharbour, Nowra and Batemans Bay. Our approach is practical and lifestyle-focused, with designs shaped around how you live, your site conditions and local planning requirements, so your home feels comfortable and well considered from the start.


  • Tailored concepts shaped around your lifestyle and budget
  • End-to-end guidance from early design through to approvals and documentation


We take the time to understand your block and your goals before developing ideas, designing with buildability and long-term comfort in mind. With strong experience across South Coast councils, we help keep the process clear and manageable at every stage. If you are planning a new home, renovation or duplex, call 0412 477 240 to start the conversation.

Explore Some of Our Recent Projects

Megan Ave

HAAUS.6

Flotar Villas

HAAUS.5

Our Design Services

We focus on thoughtful planning and precise execution at every step, with all designs, visuals, and plans created in-house. By working collaboratively, we ensure our client’s needs come first while remaining aligned with the agreed budget.

Modern kitchen with wood cabinets, marble island, and light fixtures — SDC Building Design In Kiama, NSW

Design Help That Fits You

We offer a complete building design service that supports you from early ideas right through to the point where your builder is ready to start. Whether you are imagining a new custom home, upgrading an existing layout or considering a duplex, we help you map out what is achievable and what will work best on your site. Our services include concept design, feasibility studies, DA drawings, construction documentation and interior spatial planning when needed. Every step is explained in everyday language, making the process simple and far less overwhelming than it often feels.


If you are ready to explore your options or want advice on where to start, we are happy to help. Get in touch today to chat through your plans and next steps.

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Smart Site Planning

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Practical Coastal Design

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Clear Builder Support

Modern, light-filled kitchen with light wood cabinets, marble counters, and a hallway with a staircase and artwork — SDC Building Design In Kiama, NSW

Get in Touch

Tell us a little about your project so we can point you in the right direction.
We will be in touch soon with the next steps that suit your timeline.

Contact Us