Areas we service

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

Hallway With Wooden Floor, White Walls, and a Staircase Leading Upstairs — SDC Building Design In Kiama, NSW

Building Design Support Across the South Coast and NSW

Homes in this region face unique coastal conditions, tight blocks and council requirements that can make planning feel overwhelming, which is why having local support matters. SDC Building Design works closely with clients throughout NSW, including Sydney, Illawarra, Shellharbour, Kiama, Nowra and Batemans Bay, offering grounded advice and clear steps from the first concept to final documentation.


  • Clear guidance tailored to your suburb and site
  • Practical design solutions shaped for coastal living


We design new homes, renovations, extensions and duplexes that respond to the South Coast landscape and the way people live here day to day. Our focus is always on comfort, buildability and ensuring every design choice supports a smooth approvals journey. If you want a team that understands local planning rules and the lifestyle of the region, SDC Building Design is here to help. Call 0412 477 240 to talk through your plans.

Locations We Service

Illawarra

Start your Illawarra project confidently with tailored home design, renovations, extensions and duplex solutions, supported by clear concepts, DA plans and construction documentation.

Shellharbour

Shape your Shellharbour home with coastal-focused design, including new builds, renovations, extensions and duplex plans designed for smoother approvals and easier construction.

Kiama

Create a Kiama home that suits coastal living through thoughtful new builds, extensions, renovations and duplex design backed by strong planning and documentation.

Nowra

Bring your Nowra project to life with functional home design, extensions, renovations and duplex planning supported by DA drawings and detailed construction documents.

Batemans Bay

Design smarter in Batemans Bay with new homes, extensions, renovations and duplex options crafted for coastal conditions, smoother approvals and efficient building stages.