Many New Zealand houses are energy-inefficient, unhealthy, cold, mouldy, and damp. Therefore, a new approach to building design is imminent. This article proposes a framework for the transformation of housing that integrates construction planning and design, optimization, and control tools at strategic, tactical, and operational levels. The introduced Complex Integral Design New Zealand (CIDNZ) represents a comprehensive and balanced system-based design and delivery process that facilitates and accelerates cross-disciplinary and trans-disciplinary expertise and knowledge. CIDNZ delineates a new way of designing the process based on integral, complex, and systems thinking. The emerging novel understanding of sustainability, which guides the transformation process, might lead to a balance between individuals, groups, society, and existing ecosystems. CIDNZ comprises all stages in the life cycle of buildings and all significant factors in the architecture, engineering, and construction industry, particularly, people, processes, technology, and the environment. Therefore, the entire construction process that implements a system approach to buildings as a vital part of environmental systems, goes from the environment to humans and vice versa and offers unlimited possibilities. The consequent practical application of these principles might eliminate or reduce the design defects and lead accordingly to the reduction of costs involved in their rectification.