This study assumes that the sustainable development of Somali Diaspora Community relies on the sustainability leadership practised by the co-ordinators of the Somali Community Organisations (SCOs). The SCOs were initially established to help the new Somali migrants to settle in the UK. The SCOs offered advocacy, information and guidance services. The Somali Diaspora Community still uses the services offered by the SCOs. However, lack of experience of running SCOs and clan allegiances weakened the SCO co-ordinators’ capacity to run inclusive and progressive services. The Somali Diaspora Community population in the UK is estimated to be over 200,000 of which 50% live in London. They are served by over 130 SCOs across London with three to four divided and uncooperative SCOs in each borough council. This study suggests that if SCO co-ordinators are trained and equipped with sustainability leadership capacities, they will be in a better position to lead the process to sustainability. The main objective of this study is to check the preparedness of the SCO co-ordinators to participate in a tailor-made training programme that, as the Centre for Excellence in Leadership (CEL, 2007:10) suggested, provides them with “the skills, knowledge and qualities to lead and support sustainable development”. The main question of the study is “How are transformed transformative SCO co-ordinators possible?” ii To answer this question, the extended literature review covers the modern history of Somalia, the Diaspora concept, the formation of SCOs, Education for Sustainability and community development. This is combined with the reflection of the SCO co-ordinators on their geo-historical move from Somalia to the UK, the formation of the SCOs and their view of the future of the SCOs. The result of their reflection was analysed with the application of the four terms (1M, 2E, 3L and 4D) of dialectical critical realism and the three terms (5A, 6R and 7A) of the philosophy of meta-reality. The discussion of the findings led to the development of a retroductive model (based on the Transformational Model of Social Agency (TMSA)) which presented the need for the personal and social transformation of the SCO co-ordinators, the SCOs and the Somali Diaspora Community