This study examines the spatial typologies of Ojude public spaces in Ilorin City, Nigeria, using a computational shape grammar framework to understand their spatial logic and cultural significance. The study addresses the problem of the gradual transformation and loss of spatial–cultural identity of traditional Ojude spaces due to modernization and the absence of systematic computational tools to model their spatial logic. A computational shape grammar methodology was employed to encode spatial rules and typological structures. The population comprised traditional Ojude public spaces in Ilorin, while the sample included five typologies: Ojude Oba, Ojude Balogun, Ojude Wasi, Ojude Magaji, and Agbo-Ile. Data were analyzed through spatial typology mapping, vocabulary element extraction, and rule-based grammar modeling of form generation, transformation, and motif encoding. Findings reveal a clear hierarchy among Ojude types, with Ojude Oba as the ceremonial core and Agbo-Ile as the smallest family-centered courtyard. Despite variations in size and function, recreation, communal gathering, and Islamic learning are consistent features across typologies. The study concludes that Ojude spaces embody socio-cultural and behavioral influences on community life, particularly children’s development. It recommends integrating computational shape grammar models into heritage preservation and urban design strategies to sustain these culturally significant public spaces.