Well is the certification offered by Delos, a New York company that it’s challenging more established green building certifications with its holistic approach. Well keeps into consideration not only structural and technical solutions, but also psychological and biological factors. Delos charges about $20,000 to evaluate 100,000 square feet of building space for compliance with wellness standards. The LEED-evaluation fee for the same amount of space is $13,000. Since its inception in 2000, the LEED program has certified 76,800 projects. So far, Delos has worked in 48 countries and finished 1,555 projects that total 314 million square feet. Well also has competition from the Centers for Disease Control & Prevention’s Fitwell program. Fitwell certification costs significantly less than Well at $8,000 for up to 1 million square feet. However, Delos is certainly be up to something as it counts Bill Gates among its backers.