WELL Building Standard
A building certification standard, administered by the International WELL Building Institute, that certifies a building's design and operation for occupant health and wellness, covering categories like air and water quality, lighting, acoustics, and mental health, distinct from [[concept-leed|LEED]]'s primarily environmental focus.
Why it matters
WELL certification requires ongoing performance verification, actual measured air quality and water testing after occupancy, not just design intent, which means a WELL project has to keep meeting its targets in operation, not just on paper at the point of design.
On a real project
An office tenant targeting WELL certification specifies enhanced air filtration and commits to periodic post-occupancy air quality testing to confirm the space continues meeting WELL's air quality thresholds, not just at initial commissioning.
Who this matters most to
A Sustainability/LEED Consultant manages the WELL certification process alongside or instead of LEED, depending on the owner's actual priorities.
Where this goes wrong
A project pursuing WELL certification completes construction and initial commissioning but never schedules the required post-occupancy air and water quality testing the certification depends on. The certification stalls indefinitely, incomplete, since WELL's performance verification can't be skipped the way a purely design-based certification might allow.