WELL, FITWEL, and RESET: Which Healthy Building Standard Is Right for Your wellness Project?
writer: matt morley
Biofilico’s Matt morley is a 2026 IWBI mind chapter advisory member
Healthy building certification has moved from niche interest to mainstream expectation across Europe and the Middle East. Hotel developers, commercial real estate investors, university estates teams, and wellness operators are all asking the same question: which standard should we be designing to?
The answer is not straightforward — and anyone who tells you otherwise is probably selling you something. WELL, FITWEL, and RESET each measure different things, suit different project types, and demand different levels of investment. Choosing the right framework — or the right combination — requires understanding what you actually want your building to achieve for the people inside it.
As someone who has served as an Advisor to the WELL standard on its Movement concept and is currently advising on the Mind chapter for 2026, and as a certified Fitwel Ambassador, I want to offer something more useful than a feature comparison table: a practical guide to which framework belongs in which project, and why the standards themselves are only part of the story.
Why Healthy Building Standards Exist
Before comparing frameworks, it is worth being clear about what problem they are solving.
For most of the twentieth century, buildings were designed around efficiency: maximising rentable area, minimising construction cost, optimising energy performance. Human health was largely an afterthought — assumed to be the responsibility of HR departments, facilities management, and individual behaviour rather than the built environment itself.
The research that emerged over the past two decades changed that assumption. Studies from organisations including the World Green Building Council, Harvard T.H. Chan School of Public Health, and the Leesman Index consistently showed that indoor environmental quality — air, light, acoustics, thermal comfort, access to movement — has a measurable impact on cognitive performance, sleep quality, stress levels, and long-term physical health.
Healthy building standards are the industry's attempt to codify that research into measurable, verifiable design and operational criteria. They give developers, investors, and occupiers a common language and a third-party verification mechanism for what "healthy" actually means in practice.
The Three Main Frameworks
WELL Building Standard
Developed by: International WELL Building Institute (IWBI)
Origin: USA, 2014; now global
Scope: Comprehensive — covers Air, Water, Nourishment, Light, Movement, Thermal Comfort, Sound, Materials, Mind, Community
Certification levels: Bronze, Silver, Gold, Platinum
Assessment: Third-party verified, on-site testing required
Best suited to: Commercial offices, hospitality, higher education, residential, retail
WELL is the most comprehensive and rigorous of the three frameworks. It covers the full spectrum of human health factors within a building — from the chemical composition of materials to the psychological experience of space — and requires independent verification through site testing and documentation review.
The standard is structured around ten concepts, each with a set of preconditions (mandatory) and optimisations (optional, point-scored). This means projects can pursue certification at different levels of ambition, from a foundational Silver to a comprehensive Platinum.
What distinguishes WELL from its competitors is the depth of its evidence base. Each feature is grounded in peer-reviewed research, and the standard is continuously updated through an advisory process involving clinicians, researchers, and practitioners — myself among them on the Movement and Mind concepts. This is not a marketing framework; it is a living standard that evolves as the science does.
For European and Middle Eastern project teams, it is worth noting that WELL has published performance-based requirements that account for regional building codes and climatic conditions. A WELL-certified hotel in Dubai is not simply applying American standards wholesale — the framework adapts to local context while maintaining its core health science rigour.
Considerations: WELL is the most investment-intensive of the three frameworks in terms of consultant fees, testing costs, and documentation. For projects where certification is the goal, budget should be allocated from the outset. That said, the commercial premium associated with WELL certification — particularly in the prime office and luxury hospitality markets — is increasingly well documented.
Fitwel
Developed by: Center for Active Design (now Fitwel)
Origin: USA (originally for US federal buildings); now global
Scope: Focused — emphasises equity, active design, community health, mental wellbeing
Certification levels: 1 Star, 2 Star, 3 Star
Assessment: Self-reported, desk-based review
Best suited to: Multi-tenant commercial offices, mixed-use developments, affordable housing, campus environments
Fitwel takes a different approach. Where WELL goes deep on environmental science, Fitwel goes broad on access and equity — asking whether a building's design supports healthy behaviours and community wellbeing across all occupant groups, not just premium users.
The certification process is entirely desk-based, with no on-site testing required. Project teams submit documentation for review against a scorecard of strategies across twelve health impact categories, including access to healthy food, promotion of physical activity, occupant safety, and connection to the outdoors. This makes Fitwel significantly more accessible in terms of cost and process complexity.
As a certified Fitwel Ambassador, I have found the standard particularly valuable for two reasons. First, its scorecard structure makes it an excellent diagnostic tool even for projects not pursuing formal certification — running a building against the Fitwel framework quickly reveals where the design is strong and where it is leaving health value on the table. Second, its emphasis on active design and community outcomes aligns well with the kinds of questions that university campuses, mixed-use developers, and large corporate occupiers are asking about their spaces.
Considerations: Fitwel's self-reported verification model means it carries less independent authority than WELL in the eyes of sophisticated investors. For ESG reporting and investor-facing communications, this distinction matters. However, for early-stage design decisions, occupant engagement programmes, and projects where budget constraints are real, Fitwel offers a credible and practical framework.
RESET
Developed by: RESET (a standard of GIGA)
Origin: Asia; growing presence in Europe and Middle East
Scope: Narrow and data-driven — focuses almost exclusively on continuous air quality monitoring
Certification levels: Core, Advanced
Assessment: Continuous sensor monitoring, third-party verified data
Best suited to: Commercial offices, healthcare, any project where indoor air quality is a primary concern
RESET occupies a distinct niche. It does not attempt to measure the full spectrum of human health within a building — instead, it focuses on one of the most critical and measurable factors: indoor air quality, monitored continuously in real time.
RESET-certified buildings are required to install approved air quality monitors that continuously measure particulate matter, carbon dioxide, total volatile organic compounds, temperature, and humidity, and to maintain performance above defined thresholds over time. Crucially, the certification is not awarded once and forgotten — it must be maintained through ongoing data streams, which means buildings cannot certify through a snapshot of good performance and then let standards slip.
This continuous monitoring model is increasingly relevant in a post-pandemic context where occupants, particularly in Europe and the Middle East, are acutely aware of air quality as a health factor. For commercial tenants negotiating leases, the ability to point to independently verified, real-time air quality data is a meaningful differentiator.
Considerations: RESET's narrow scope means it is rarely sufficient as a standalone healthy building strategy. It works best as a complement to WELL or as a targeted intervention for projects where air quality is the primary health concern — particularly relevant in dense urban environments, high-traffic locations, or markets with seasonal air quality challenges.
Choosing the Right Framework for Your Project
The choice between WELL, Fitwel, and RESET is not primarily a question of which standard is "best" — it is a question of what you want your building to achieve, for whom, and within what constraints.
Here is how I typically approach it by sector:
Hospitality: WELL is the natural fit for luxury and upper-upscale hotels where the wellness experience is a core brand proposition. WELL certification provides third-party verification that supports marketing claims, investor communications, and ESG reporting. For branded residences, WELL for Residential is increasingly being specified. RESET is a valuable addition where air quality transparency is a guest-facing feature — particularly in urban properties or markets where air quality is a known concern.
Commercial Real Estate: WELL and Fitwel serve different segments of this market. For prime office developments targeting institutional tenants, WELL's rigour and investor recognition make it the more commercially defensible choice. For multi-tenant mixed-use developments, affordable office, or projects where the developer wants a credible health framework at lower cost, Fitwel's scorecard approach is practical and increasingly recognised by ESG-conscious occupiers. RESET is a strong complement in either case, particularly for buildings promoting occupant productivity.
University Campuses: Fitwel's emphasis on equity, community, and active design aligns well with the stated values of most higher education institutions. Its scorecard also maps usefully onto student wellbeing initiatives, mental health strategies, and sustainability frameworks. WELL is appropriate for flagship projects — new learning centres, student wellness facilities — where the institution wants to make a more substantial commitment.
Wellness Sector: For spas, wellness retreats, yoga studios, and health clubs, formal certification is less common but the underlying frameworks remain highly relevant as design guides. The WELL Mind and Movement concepts, in particular, provide a research-based foundation for spatial design decisions that are often made on intuition. At Biofilico, we use these frameworks as a reference point even when clients are not pursuing formal certification — which is often the right commercial decision.
Beyond the Certification Itself
This is the point I most want to make, and it is the one that gets lost in most healthy building conversations.
Certification is a verification mechanism, not a design philosophy. A building can achieve a given certification through meticulous documentation and targeted technical interventions without ever feeling like a genuinely healthy, restorative place to be.
Conversely, a building designed from first principles around human health, sensory experience, and occupant wellbeing can deliver exceptional outcomes without a certificate in sight.
The value of frameworks like WELL, Fitwel, and RESET is that they encode the current scientific understanding of what buildings should provide for human health — and they give design teams a rigorous, structured way to think about decisions that might otherwise be made on aesthetic grounds alone.
At Biofilico, we use these standards as a lens, not a checklist. They inform how we think about air quality in a hotel spa, acoustic treatment in a university library, circadian lighting in a co-working space, or material specification in a wellness retreat.
The goal is always a building and interior space that works for the people inside it — one that is measurably better for human health and experience. Whether that results in a certificate on the wall is a secondary question.
What matters is that the science is embedded in the design from the beginning — not bolted on at the end.
matt morley - wellness design consultant
Working With Biofilico
Biofilico is a wellness interior design consultancy working across hospitality, workplace, university campuses, and the wellness sector in Europe and the Middle East.
We design spaces informed by the latest healthy building research — and we help clients navigate the question of which standards and frameworks belong in their projects from the earliest stages of a brief.
Matt Morley has served as an Advisor to the WELL Building Standard on its Movement concept and is currently advising on the Mind chapter for 2026. He is also a certified Fitwel Ambassador.
If you are developing a project and want to understand how healthy building thinking should shape your design brief, get in touch to arrange a consultation.