The Edge, Amsterdam

The Edge in Amsterdam, completed in 2015, earned a BREEAM score of 98.4%—the highest ever recorded—earning its title as the world's most sustainable office building. Its 28,000 rooftop solar panels generate more energy than the building consumes, while a smartphone system adjusts lighting and temperature per employee preferences. This energy-positive design is 30% more efficient than #3 Bosco Verticale's energy-saving strategies, thanks to its integrated smart technology. The building also harvests rainwater for 80% of its non-potable water needs, reducing grid reliance more effectively than the typical office structure.