The Forestias is a 157-acre mixed-use district designed for human and environmental well-being in the Bangna district of Bangkok in Thailand. The forested neighborhood is focused on creating a happy, healthy community that embraces all generations under the vision “Imagine Happiness”. The project aims to integrate its residents with flourishing natural ecosystems to provide a role model for sustainable urban development across Southeast Asia. With these goals, the project has established nine sustainability principles to govern the design and construction process. These principles include nature and animals, community and integration, liveable neighbourhood, health, well-being and happiness, innovative energy system, integrated water management, active mobility and transport, materials and resources as well as education and discovery. The Forestias development will accommodate people of all ages to live in harmony which in turn strengthen family relationships, thus creating a happy intergenerational neighbourhood that strengthen the family and community values through creative and innovative design solutions