https://community.wongcw.com/blogs/972725/What-You-Must-Know-About-Custom-Granny-Flats-in-Sydney

Adding eco-friendly features to your property is friendly to the environment and, at the same time, very cost-effective in the future. Solar panels and a rainwater collection system lower utility bill while diminishing your impact on the environment. It is also eco-friendly, utilising second-hand or eco-friendly materials, such as green concrete and sustainable timber, for the completion of your flats without having to compromise on style.