This study explores how one public library assesses the outcomes of a makerspace and examines whether the approaches taken can be justified as appropriate. An increasing number of public libraries throughout the world are establishing makerspaces, and to date there is little literature on how outcomes of these services are assessed. This study explores the methods that are being used, making comparisons to best practice revealed in the literature. The project is a case-study of the Central City Library makerspace (Auckland Libraries, New Zealand). The study collected evidence from documents, archival records, and interviewees. The findings revealed that while efforts are being made to assess the outcomes of makerspaces, methods and techniques are primarily informal. Current formal reporting relies upon quantitative measurement, such as visitor or participant numbers, which fails to capture the effects of the service on users. The implication is that staff may develop more structured and formalized approaches to assessing the outcomes of makerspaces. Further research could include the design of a prototypical outcomes assessment model that is then tested on a public library makerspace to determine the practicality of the approach. [ABSTRACT FROM AUTHOR]