Long term suitability is rarely considered in street design. To address this issue, this study proposes a framework that incorporate measures of suistainability in rule-based modeling of street design alternatives using CityEngine Complete Streets rule. We adopt GreenLITES suitability criteria and apply them to a proof of concept application that compares four different design scenarios. The results show that this framework can be used to assess street sustainability during the conceptual design phase and can be customized to achieve communities’ sustainability goals.