GeoDesign is a collaborative planning method that tightly couples design proposals with impact simulations informed by geographic contexts. It addresses shortcomings of traditional land use planning like lack of systematic impact monitoring, geo-databases, and flexibility to change designs. GeoDesign involves community input to gather information, analyze current conditions, compare alternatives, and create future land use plans. Examples include transportation planning and redevelopment projects. GeoDesign is a new approach for land use planning and policymaking that utilizes existing geospatial tools.