This Assessment of Development Results (ADR) analysed UNDP’s roles and contributions to development results in the Democratic Republic of Timor-Leste between 2004 and mid-2011. This period includes the previous (2003–2008) and the ongoing (2009–2013) UNDP country programmes. This was the first ADR conducted in Timor-Leste, taking place towards the end of the current 2008–2013 UNDP programming cycle. The ADR assessed the effectiveness of the UNDP strategy to achieve development results by facilitating and leveraging national efforts in the areas of sustainable peace, transition and state-building.