The 3rd Symposium: Sustainable Development in Latin America, organised by the Latin American Society of Imperial College London (Lat-Imperial), took place on the 20th and 21st of May 2019 at the Skempton Building. This symposium aimed to present Imperial and UK/Europe based research that directly impacts the sustainable development and future of the Latin America (LATAM) Region. Researchers from several nationalities with interest in Latin America presented their work, selected after a rigorous peer-review process, on topics such as the role of natural resources, climate change policy, waste management and innovation, water use and urban planning, energy transition and bioinformatics for a sustainable future of the LATAM Region.