This study examines the adaptive strategies employed by the community in Timbulsloko, Demak Regency, Central Java, Indonesia, to mitigate the impacts of sea-level rise resulting from climate change. It aims to share the measures taken by Timbulsloko (Indonesia) and other future cities in Asia, such as Shanghai and Guangzhou (China), Dhaka, Banishanta and Sutarkhali (Bangladesh), Ayutthaya (Thailand), and Ho Chi Minh City (Vietnam). Using qualitative methods and in-depth interviews, this study reveals how the community has developed collective behaviours, local knowledge, and indigenous technologies to adapt to permanent water inundation. These efforts demonstrate their ability to learn from past experiences and enhance their resilience in the face of environmental challenges. The findings provide valuable insights for future cities in Asia, particularly those in coastal regions that are vulnerable to the impacts of climate change. The local community in Demak regency has adopted a high level of collective behaviour to combat sea level rise flooding, which not only produces efforts but also generates local knowledge and technology as an advanced adaptation process for the future. The experience of the local community in Timbulsloko highlights the potential of hybrid adaptation models that merge traditional practices with innovative technologies. This study emphasises the importance of empowering local communities as central stakeholders in building resilience. Aligning these localised efforts with global climate frameworks, such as the Sustainable Development Goals, ensures scalability and long-term effectiveness.