The value of waterway enhancement in Christchurch : a preliminary analysis

Abstract

The Waterway Enhancement Programme was established by the Christchurch City Council as part of an ongoing commitment towards the sustainable management of tributary waterways throughout the city. Enhancement activities involve landscaping to emphasise the natural contours of the waterways, and planting native species to promote the establishment and maintenance of aquatic and bird life. Waterway enhancement activities provide increased opportunities for recreation and education, as well as drainage and water quality improvement services for the city. To the extent that they improve the habitat for native flora and fauna they also contribute to a valuable natural ecosystem that contributes to the quality of life for all Christchurch residents. The public good aspects of these benefits raise interesting policy questions regarding willingness to pay for waterway enhancement services, and the role of the public sector in their provision. In this study a simple statistical model is specified and used to explore the relationship between property values and proximity to a particular waterway enhancement site. Results indicate a statistically significant positive relationship between property values and waterway proximity, and suggest a positive willingness to pay for enhancement activities.