The WELL Building Standard™



The WELL Building Standard™ is the first building standard to focus on the health and wellness of building occupants. Developed by Delos and managed by the International WELL Building Institute™, WELL was designed using evidence-based medical and scientific research to create a built environment that better supports human health and well-being.

The WELL building Standard™ provides a model for design and construction to integrate human health features in the built environment. This program is a performance based system to measure the impact of built environments on human health.


The WELL Air concept aims to achieve high levels of indoor air quality across a building’s lifetime through diverse strategies that include source elimination or reduction, active and passive building design and operation strategies and human behavior interventions.

The WELL Water concept covers aspects of the quality, distribution and control of liquid water in a building. It includes features that address the availability and contaminant thresholds of drinking water, as well as features targeting the management of water to avoid damage to building materials and environmental conditions

The WELL Nourishment concept requires the availability of fruits and vegetables and nutritional transparency. It encourages the creation of food environments, where the healthiest choice is the easiest choice.

The WELL Light concept promotes exposure to light and aims to create lighting environments that promote visual, mental and biological health.

The WELL Movement concept promotes physical activity in everyday life through environmental design, policies and programs to ensure that movement opportunities are integrated into the fabric of our culture, buildings and communities.

The WELL Thermal Comfort concept aims to promote human productivity and provide a maximum level of thermal comfort among all building users through improved HVAC system design and control and by meeting individual thermal preferences.

The WELL Sound concept aims to bolster occupant health and well-being through the identification and mitigation of acoustical comfort parameters that shape occupant experiences in the built environment.

The WELL Materials concept aims to reduce human exposure, whether direct or through environmental contamination, to chemicals that may impact health during the construction, remodeling, furnishing and operation of buildings.

The WELL Mind concept promotes mental health through policy, program and design strategies that seek to address the diverse factors that influence cognitive and emotional well-being.

The WELL Community concept aims to support access to essential healthcare, build a culture of health that accommodates diverse population needs and establish an inclusive, engaged occupant community.

Innovation features pave the way for projects to develop unique strategies for creating healthier environments.

WELL Health-Safety Rating

Look for the seal

When you see the WELL Health-Safety seal, you can feel confident knowing the space you’re entering is putting your health first.


Connect with one of our WELL Accredited Professionals to learn more.