Adopting a Strategic Sustainable Development (SSD) approach to official bilateral development assistance could result in more effective development planning that yields lasting results in developing countries. A Framework for Strategic Sustainable Development Assistance (FSSDA) based on SSD and customised to the needs of a development agency offers guidance in planning for development towards sustainability. This it does by directing donor and recipient planners in generating holistic perspectives, setting the goal of development as an attractive and sustainable society, and providing a flexible decision-making framework to guide strategic planning. Development assistance donor agencies face several difficulties in ensuring aid effectiveness. The FSSDA offers support in addressing these challenges by: positioning the creation of sustainable societies as the fundamental goal of development; allowing progress against imminent sustainability threats while minimizing the risk of unforeseen negative impacts; balancing economic, environmental and social considerations; and providing a fairer basis for aid conditionality.