In this project, an engine for parametrically testing multiple options for occupation of the site was developed. This parametric engine addressed possible variations within a typology such as courtyards and towers. The selected parameters all related to the energy performance of the building, including building orientation, floor depth, floor width and floor location. 5 possible versions of the building were produce by using this parametric engine. Collected data from the model were used as part of the argument for choosing the best version as optimal from the perspective of building energy performance taking into account factors such as solar heat gain & daylighting.