The number of people worldwide living with dementia and cognitive impairment is increasing, mainly due to people living longer, so, by conducting the SPACE project we want to figure out how where we live affects dementia and brain health as we get older. Some research suggests that where we live might influence our brain health. As more of us now live in towns and cities, it is important that the environment where we live (regardless of geographic location or socio-economic status) is designed to maximise our brain health. We do not know what factors make environments a problem for brain health. Nor do we know which are the best policies, practices or interventions for promoting healthy ageing and brain health particularly for our poorest communities. Therefore, the SPACE project aims to provide evidence to inform policies and interventions that will provide supportive urban environments to promote healthy ageing, including promoting brain health. This could include using creative urban designs to support people to adopt and maintain healthier lifestyles such as being more active. Find out more on our website: https://www.qub.ac.uk/sites/space/