The Rebirth of Rosebank: The Rise of Sponge City

Abstract

The Rosebank Peninsula is a century-old industrial area located in the western part of Auckland, New Zealand, known for its unique urban and natural features. It is bordered by the Whau River, which used to be an important trade route on the peninsula and is surrounded by the Waitemata Harbour to the north. The peninsula was once home to abundant wildlife and fish, nurturing a thriving wetland ecosystem. However, with the onset of industrial development during the post-colonial era, the river’s ecological health gradually deteriorated due to nearly a century of direct industrial waste discharge. Today, after decades of development, industrial facilities have replaced the once vibrant ecosystem, and many local industrial buildings have lost their value. The restoration of the ecological environment and human habitat is urgently needed. This thesis aims to explore how the Rosebank industrial area can be effectively revitalized by implementing sustainable development strategies and systematic architectural transformation methods. The research primarily focuses on three aspects: first, exploring how architectural transformations can break down functional barriers between industrial and residential areas and establish closer connections. Second, investigate the restoration of the ecological environment through architectural transformations. Lastly, proposing methods to enhance regional vitality. The research methods involve contextual analysis, drawings, and detailed prototype studies. The process particularly examines the traditional factory portal frame structure, known for its flexibility, and how it can lead to various innovative transformation strategies. The thesis ultimately presents a project that focuses on transformating a group of existing industrial buildings, turning the central area of the peninsula into a sustainable community hub. Alongside the revitalisation of the Whau River as a water transport hub, the proposed scheme also incorporates the concept of a sponge city into the broader area, creating a harmonious environment for both humans and nature. The project aims to effectively utilize existing resources and inject new vitality into the Rosebank Peninsula for future generations.