circa (computational infrastructure for residential climate analysis) is a research project that aims to systematically design, develop, implement, operate, and evaluate resilient construction techniques and renewable energy systems in the residential buildings sector.

The circa research project focuses on both the supply-side of green energy and building policies, resilient building construction practices, electricity grid dynamics, and renewable energy systems deployment processes but also on the demand side of personal energy consumption dynamics with reference to on-site weather patterns and evolving personal lifestyle aspirations.

Additionally, term ‘circa’ is overloaded: circa research project is one side of a holistic computational social science research program-the other side is the novel CIRCA Design Philosophy which encapsulates the following five design principles for residential buildings:

• C: Contemporary (Amenities and Appliances)
• I: Indigenous (Arts and Crafts)
• R: Renewable (Energies and Technologies)
• C: Civilisational (Logos, Ethos, and Pathos)
• A: Architecture (Parti and Elements)