Project Type
Price
At Rossmark, we specialise in custom-designed house extensions that help you make the most of your existing home. Whether you're looking to add extra bedrooms, expand your living areas, create a home office, or improve your indoor-outdoor flow, our experienced team works with you to design and build an extension that suits your lifestyle, needs, and budget. With decades of experience in the Sutherland Shire and greater Sydney region, we understand how to navigate local council requirements and deliver high-quality results that blend seamlessly with your current home. From concept to completion, we handle every detail—ensuring your extension adds value, space, and comfort to your home. Explore our featured house extension projects to see how we’ve helped other families transform their homes with thoughtful, functional design.