Cities across Africa are expanding rapidly reshaping urban landscapes and transforming many rural areas into sprawling peri-urban zones and emerging cities. Accurate, data-driven analyses are needed to understand these dynamics and guide sustainable urban planning. This study examines the shape of built patterns in Burkina Faso using open-access fine-grained building footprint data. We first analyzed 60 cities with the fractal-based MorphoLim method to compute the inter-building distance thresho