How can computation and aggregation-based design tools be utilized in the creation of a modular housing development? Using existing computer modelling and computational programming tools, such as Rhinoceros and its plugin Grasshopper, a set of architectural objects can be created. Geometric data will be derived from these architectural objects and a set of spatial relationship rules will be developed. By using aggregation based and genetic solver Grasshopper plugins such as WASP and GALAPAGOS the arrangement of these architectural objects will organize themselves, based on set spatial relationship rules as well as a controlled set of testing constraints. The development of these spatial rules and testing constraints will be catered to facilitating the creation of a modular housing development, specifically located on a later specified site on the Southern part of the City of St. Paul Minnesota.