In a world characterized by volatility, uncertainty, complexity, and ambiguity (VUCA) due to climate crisis and complexities in the urban system, sustainability is a key issue for allowing flexible intervention and management around architecture and planning. The process of achieving sustainability has not been easy as COVID-19 highlighted critical deficiencies in our built environment and urban design. These complexities necessitate innovative approaches, methodologies, and concepts beyond sustainability which can incorporate and utilize the inherent potentials of human and environmental transformation. This could support architects, urban designers, and urban and regional planners in implementing actions and commitments in achieving sustainability and managing transformation in a variety of ways. The previous conference in 2020, the 5th International Conference on Indonesian Architecture and Planning (ICIAP), explored the idea of ‘Complexity: Design, Planning, and Innovation’ which explored how complexity in design and planning could be managed to result effective and innovative solutions for the ever-evolving world.