Abstract:The paper first shows, through examples, that ‘structure’ is a problem in space syntax, though not an obvious one. It then examines the current syntactic concept of four space types, and suggests that through definition and repetition we can derive four structure types. Comparative measures of the structure-types are shown, including integration, and two new ones, ‘local choice’ and ‘traversability’. The concepts and measures of the types are then taken back to the examples used to define the problem, and it is shown they work effectively to both identify and measure aspects of ‘structure’.