The article examines two aspects of urbanisation in the rural areas of Flanders, the northern part of Belgium. On the one hand, the evolution of the built environment is studied in terms of built-up density and the corresponding morphological sprawl pattern, from the beginning of the 19th century up until now. On the other hand, the economy dynamics in the rural areas are investigated. This shift in economic activities can be seen as part of a broader urbanisation process, with aspects such as tertiarisation and broadening of agriculture. The main driving factors behind these transformations are discussed based on literature study. It becomes clear that urbanisation of the countryside is the combined result of economic, physical, cultural and political evolutions. The comparative study in eight case municipalities with different spatial characteristics maps the evolution of the built environment and continuity of the economic activities. Temporal and regional differences are analysed and related to more location-specific driving factors. The sprawl pattern seems to have a historical ground, whereas the difference in density is related to the evolution path. Regarding the local economy dynamics, no clear regional differences can be found. The professions and other business services category has the highest density. The amount of tertiary activities proves the importance of tertiarisation on the countryside. Both studied evolutions tend to change the open space profoundly. Therefore, insights are crucial in order to develop location specific policies.