Sustainable infrastructure refers to development which considers the environmental impacts of its energy generation, its water and land management, and the sustainable sourcing of its building materials. In some viewpoints, it is even a holistic approach to development 一 valuing environmental stewardship at its core. Under this model, buildings are repurposed, retrofitted, repaired, and rehabilitated. It forces our development industry 一 and our community mindset 一 towards the principles of a circular economy.