Based on the findings from extensive research, including interviews with older people, this book demonstrates the urban design basics that should be adopted in order for the outdoor built environment to truly provide for the whole population. Part one examines the changing experiences of people in the outdoor environment as they age and discusses existing outdoor environments and the aspects and features that help or hinder older people from moving around in, using and enjoying the outdoor environment. Part two presents, in detail, the six design principles for 'streets for life' and their many individual components as discovered by the authors during their research. Using annotated site plans, photographs and line drawings, a range of design features are presented at all scales of the outdoor environment from street layouts and building form to signs and detail. Part three expands on the concept of 'streets for life' as the ultimate goal of inclusive urban design. These are outdoor environments that people are able to confidently understand, navigate and use, regardless of age or circumstance and represent truly sustainable inclusive communities.