WELL vs Fitwel vs LEED: Key Differences and How to Choose for Your Goal

"Which certification is right for us?" is one of the most common questions from developers, funds and companies. LEED, WELL and Fitwel often come up in the same conversation, but they do not compete for the same thing. The best way to choose is not to compare scores or levels, but to start with a different question: what business problem are you trying to solve?

The fundamental difference

• LEED, from the U.S. Green Building Council, certifies the building's environmental performance: energy, water, materials, emissions, location and indoor environmental quality.
• WELL, from the International WELL Building Institute, certifies how the building affects people's health, and verifies it with on-site performance testing.
• Fitwel, created by the U.S. CDC and GSA, certifies design and management strategies that promote occupant health, through a documentation-based process with no verification visit.

In ESG terms: LEED mainly covers the environmental "E"; WELL and Fitwel provide evidence for the social "S".

How they compare

Process and rigor

LEED and WELL have mandatory prerequisites and are reviewed through GBCI. WELL adds on-site verification, making it the most demanding of the three in terms of measured results. Fitwel has no prerequisites and its review is entirely documentation-based, which makes it more agile.

Levels

LEED offers Certified, Silver, Gold and Platinum. WELL offers Bronze, Silver, Gold and Platinum. Fitwel is expressed as one, two or three stars.

Validity

WELL and Fitwel are recertified every three years, because a building's health depends on how it is operated. LEED for new construction is awarded once, although there are pathways to certify and recertify operating buildings.

Return

LEED is justified mainly by operating savings and access to green finance. WELL and Fitwel are not about saving energy: their return shows up in rent, occupancy, productivity and talent retention.

Choose based on your goal

"I need to cut operating costs or access green finance"

The answer is LEED, or EDGE if you want a more direct route in emerging markets. Expecting energy savings from WELL or Fitwel is one of the most common mistakes.

"I need my team back in the office, and to stay"

WELL if the headquarters is a strategic asset and you want measured air and water evidence; Fitwel if you need to cover several offices on a tighter budget. See WELL for offices and Fitwel for offices.

"I manage a portfolio and my investors want health metrics"

Fitwel scales better across many assets and is recognized by GRESB. WELL is usually reserved for flagship buildings.

"I run a hospital, a clinic or a school"

Air and water quality are critical to operations, so WELL is usually easier to justify. See WELL for health centers and WELL for education projects. On a limited budget, Fitwel for health centers is a good first step.

"I develop housing and want to stand out"

It depends on the segment. We explain it in health certifications for residential projects.

The combinations that work best

• LEED + WELL: the most complete combination for corporate towers. They share a review body and several topics, such as indoor air quality, materials and lighting, so running them in parallel saves effort. That is what we did at MMG Tower in Panama.
• LEED or EDGE + Fitwel: for developers who have the environmental side covered and want to add a health seal.
• Fitwel across the portfolio + WELL at headquarters: the usual strategy for corporates and funds with many properties.

Common mistakes when choosing

• Choosing for prestige instead of purpose. The most demanding seal is useless if the budget cannot carry the process to the end.
• Measuring WELL or Fitwel with energy metrics. If the committee expects energy savings, the certification will look like a failure even when it does its job.
• Deciding too late. All three are simpler and cheaper when built into the design.

At Leaf we work with LEED, EDGE, WELL and Fitwel, so we can recommend the best fit without being tied to any one of them. Tell us about your project and we will propose a path.