The annex on the Yarra River is designed to blend seamlessly with its natural surroundings, enhancing an existing building. This multifunctional space features glass and timber construction, optimizing natural light and river views. The interior boasts an open, flexible layout with sustainable elements such as solar panels and rainwater harvesting systems. The design includes a river-facing terrace, providing a tranquil outdoor area. Overall, the annex aims to merge functionality with sustainability, creating a harmonious space that connects people with nature.