This report is the third volume in a series on Accelerating Climate Action in Colombia through urban laws and policies. It describes the field visits accompanied by Bucaramanga’s land legalization team, to several informal settlements in different stages of the land legalization process. It includes the comparative analysis of settlements before and after the legalization process, based not only on field visits, but also interviews with lawyers, architects, planners, social workers, and geologists about the role of urban environmental laws on the land legalization process.