Architects, planners, engineers, and real estate developers are positioned to have a greater impact on the future of public health than physicians. With 70% of all the leading causes of death determined by behavior and environment, professionals at the forefront of creating places that prevent chronic disease conditions are leading the way to longer and better living for future generations. In 2014, the WELL Standard was released that offers a roadmap for building professionals to apply the over 100 public health interventions into their projects. This session will present the results from a multi-year case study on the first WELL Certified project under Version 1.0 in the world-TD Bank 23 in Toronto, Canada. The study measured building performance and occupant experience outcomes. The WELL Survey measured perceptions of occupant environmental satisfaction, mental and physical health, workplace well-being, and presenteeism. These results along with business case analysis and facility and human resources information will be shared.