Policies aimed at reducing carbon dioxide emissions often focus on the need to change existing behaviours and social practises as well as to provide technological advance in energy supply, waste waste, transport, industry and infrastructure. While fundamentally important to the mitigation of climate change, little is written about the impact that achieving carbon reduction targets, particularly for the built environment, will have on individual and societal wellbeing and quality of life. This article investigates how a set of measures can be developed to assess wellbeing in cities, both as they are at present and as they transition to low-carbon futures. It outlines the important relationship between wellbeing, low-carbon development and the built environment. A strategy for obtaining and assessing wellbeing measures is explained, the measures are discussed and 100 selected measures are detailed. The article ends by illustrating how these measures can be integrated into a wider study of wellbeing