Final answer:
Sustainable architecture is a design concept that focuses on using energy-efficient systems and sustainable building materials to minimize the environmental impact of buildings.
Step-by-step explanation:
Energy with low/no-cost that comes as a result of building design is known as sustainable architecture. It focuses on using energy-efficient systems and sustainable building materials to minimize the environmental impact of buildings. Examples of low/no-cost energy strategies in building design include daylighting, natural ventilation, and onsite solar power or wind energy.