Ground Floor Extensions | First Floor Additions

Nestled amidst the stunning landscapes of Shellharbour, Wollongong, Sutherland Shire, and Bowral, Complexx Design and Renovate stands as a beacon of unrivalled craftsmanship in custom home building, renovations, Extensions and Additions, design, decks, pergolas, and fire zone construction. Our dedicated team of builders brings forth meticulously crafted structures, embodying a steadfast commitment to excellence that defines every project we undertake.


Indulge in our specialised services:

  • Extensions & Additions – Illawarra – Expand your living space with seamless extensions and additions that blend seamlessly with the picturesque surroundings of the Illawarra region.
  • Extensions & Additions – Shellharbour – Enhance your coastal lifestyle with bespoke extensions and additions tailored to the unique character of Shellharbour.
  • Extensions & Additions – Sutherland Shire – Elevate your home in the tranquil ambiance of Sutherland Shire with expertly crafted extensions and additions that enhance both form and function.
  • Extensions & Additions – Bowral – Embrace the charm of Bowral with bespoke extensions and additions that seamlessly blend classic elegance with modern convenience.

Our Build & Design Process

  • Simplified project management: Complex Constructions oversees the entire renovation process.
  • Customised design options: Client's tailor their renovation plans to their preferences.
  • Efficient timeline management: Complex Constructions ensure timely project completion.
  • Transparent communication: Clear and consistent communication throughout the renovation.
  • Quality craftsmanship: Complex Constructions guarantee high-quality workmanship.
  • Budget-friendly solutions: Cost-effective options available for different budgets?