The document summarizes lessons learned from rebuilding efforts after two natural disasters: the 2004 Aceh tsunami and the 2006 Yogyakarta earthquake. It finds that the Yogyakarta response was faster and more locally owned, with livelihood recovery prioritized alongside housing. The Aceh response faced challenges including an overly ambitious rebuilding timeline, lack of local government ownership, and delays in livelihood recovery. Key lessons included ensuring economic openness, managing expectations, gradual donor exit strategies, and prioritizing livelihood recovery alongside housing.