The built environment directly impacts human health and well-being, yet most green certification systems prioritize energy efficiency over occupant health. The WELL Building Standard (WELL), launched in 2014, addresses this gap by focusing on the health and comfort of building users. Despite its growing importance, limited academic research systematically examines its global implementation. This study will fill this research gap by analyzing 1559 WELL-certified projects worldwide using the WELL database. The results reveal that 50% of certifications are concentrated in China and the United States, while regions such as Africa and Latin America show minimal adoption. Most projects are office buildings (83%), with fewer in education, healthcare and residential sectors. Additionally, most certified projects have achieved Gold or Platinum levels, and there has been a notable increase in certifications since the COVID-19 pandemic. By identifying geographic and typological disparities, this research provides a global overview of WELL adoption and offers insights for practitioners and policymakers seeking to promote health-focused building practices.

Environmental certifications have been implemented in the construction sector because of the benefits of reduced environmental impact, improved energy efficiency, and water use, among others. In recent years, the EDGE (Excellence in Design for Greater Efficiencies) certification has been adopted in more than 140 countries. However, despite its popularity, the literature on its environmental impacts worldwide and in Latin America is scarce. Therefore, the following article will analyze the use of EDGE in housing projects in Peru and show the strategies employed in the case studies to reduce the environmental impact. The main average savings obtained were 27.6% in energy, 41.2% in water, and 51.81% in embodied carbon in materials. The following study aids professionals in the construction sector interested in implementing EDGE certification in their projects, as it will show the environmental impacts generated by this certification.