This paper documents the endline findings and lessons learned from the "Advancing Learning Outcomes and Transformational Change (ALOT Change) program whose goal was to secure the future of adolescent girls and boys aged 12-19 in two urban informal settlements in urban Nairobi. The purpose of the paper was to explore what were the key endline findings and lessons learned from the ALOT Change program, which was a community-based intervention targeting girls and boys in urban informal settlements of Nairobi. Data were from the endline evaluation of the program conducted in July-August 2018, and program implementation documents between 2013 and 2018. The impact of the program was on life skills, learning outcomes, and leadership skills. One of the key lessons learned was that there is value in the implementation of integrated approaches, which systematically bring together multifaceted components of interventions. This reduces inefficiencies and enhances the impact.