What is WELL Certification and Why Is It Important?

Buildings are no longer judged solely on their appearance and efficiency; they are now expected to support an occupant’s physical and mental health. This is where WELL Building Standard certification plays a significant role – by providing a clear framework for creating people-first spaces that prioritise well-being.

Our team has also explored the features, benefits, and assessment criteria behind other leading sustainability accreditations, including Fitwel Certification, WiredScore, NABERS UK, and BREEAM.  

Key Takeaways

  • WELL is a global certification focused on designing and operating buildings that support human health and well-being.
  • WELL v2 offers a flexible, performance-based framework built around ten core concepts, including air, water, light, sound, movement, and community.
  • Certification levels range from Bronze to Platinum, with higher tiers recognising advanced performance and leadership in occupant health.
  • Willmott Dixon Interiors integrates WELL principles into refurbishment and fit-out projects, helping customers create healthier, high-performing spaces.

What is WELL Building Standard?

The WELL Building Standard (WELL) is a performance-based framework for designing, constructing, and operating buildings that support human health and well-being.

Why is WELL important?

Given that people spend 80–90% of their time indoors, the quality of the spaces we occupy has a direct impact on our health, comfort, and well-being. This makes certifications like WELL essential for designing and operating buildings that support both physical and mental health.

It also enables organisations to demonstrate leadership in creating workplaces and buildings that prioritise people.

What is WELL v2?

WELL v2 is the second and latest version of the WELL Building Standard. It builds upon the foundations of the original WELL Building Standard through the introduction of a more flexible, inclusive, and optimised approach to health and wellness in buildings.

Some of the key features and improvements of WELL v2 include:

  • Comprehensive framework: A single unified standard suitable for all building types, streamlining the certification process.
  • Flexible scoring system: Projects can choose the strategies most relevant to their goals, context, and occupant needs.
  • Focus on optimisation: Encourages continuous improvement through optional strategies designed to exceed baseline requirements.
  • Global applicability: Designed to reflect cultural and geographical differences, making the standard usable worldwide.
  • Integration of technology: Uses digital tools and monitoring systems to support building performance and occupant well-being.

The Ten Core Concepts of WELL

Administered by the International WELL Building Institute (IWBI), WELL sets measurable criteria across ten core concepts that work together to create healthier environments.

  1. Air: Improving indoor air quality by reducing pollutants, enhancing ventilation, and filtering contaminants to support occupant health.
  2. Water: Supporting safe water quality through filtration, regular testing, and access to clean drinking water.
  3. Nourishment: Encouraging healthier eating by promoting access to nutritious food and reducing reliance on heavily processed options.
  4. Light: Prioritising natural light and well-designed artificial lighting to support comfort, energy levels, and sleep quality.
  5. Movement: Integrating physical activity into daily routines through layout design, appealing stair routes, and access to fitness facilities.
  6. Thermal Comfort: Creating comfortable indoor conditions by managing temperature, humidity, airflow, and offering personal control where possible.
  7. Sound: Reducing unwanted noise and improving acoustic clarity to support concentration and communication.
  8. Materials: Choosing materials that limit toxins and pollutants to create healthier indoor environments.
  9. Mind: Supporting mental and emotional well-being through access to nature, areas for relaxation, and programmes that reduce stress.
  10. Community: Designing inclusive environments that foster social connection, engagement, and a strong sense of belonging.

What are the WELL Certification Levels?

There are four certification levels, which are achieved by meeting defined targets and demonstrating ongoing performance.

Certification Level Description
Bronze The entry level. Awarded when a project meets the fundamental WELL prerequisites and achieves the minimum points for certification.
Silver Indicates stronger performance across multiple WELL concepts. A project has met all of the WELL Building Standard’s preconditions.
Gold Requires substantial performance across well-being measures and a significant number of optional features.
Platinum The highest standard, reflecting leadership in health and wellness in the built environment. Projects must meet all preconditions and the majority of the optional features.

What are the benefits of WELL?

WELL Certification delivers clear and measurable advantages for organisations and occupants. By focusing on health and performance it helps create environments that support people and strengthen long-term value.

  • Improved indoor air quality: Enhanced ventilation and filtration help reduce pollutants and create healthier environments.
  • Better lighting and comfort: WELL promotes high-quality lighting and improved thermal and acoustic conditions to reduce strain and distraction.
  • Support for physical and mental well-being: Design features such as movement-friendly layouts, biophilia, and restorative spaces help people feel healthier and more supported.
  • Increased productivity and satisfaction: Healthier, more comfortable workplaces can lead to improved focus, reduced absenteeism, and higher overall satisfaction.
  • Stronger ESG and market reputation: Certification provides credible evidence of wellbeing and sustainability commitments, helping organisations stand out and appeal to occupiers, tenants, and talent.

WELL-Certified Projects from Willmott Dixon Interiors

The WELL Building Standard is being used across more than 6.28 billion square feet of space in 132 countries.

Willmott Dixon Interiors works with customers to integrate WELL principles from the earliest stages of a project. By embedding WELL-aligned features into a refurbishment or fit-out, organisations can upgrade their spaces while ensuring they support long-term health and wellbeing.

A standout example from Willmott Dixon Interiors is the CAT A refurbishment of 19 Cornwall Street, which achieved WELL Gold. The project transformed a seven-storey office block into 139,000 sq ft of SMART-enabled, net zero carbon workspace in Birmingham’s Colmore Business District.

Wellbeing-focused amenities played a key role in meeting WELL Gold, including showers, changing rooms, secure cycle storage, EV charging points, breakout areas, and a communal roof terrace. An all-electric MEP strategy with PV panels and smart controls further enhanced environmental performance and indoor comfort.

If you would like more information on how WELL principles can be incorporated into your upcoming project, Willmott Dixon Interiors can support you at every stage. Contact our team today for more information and to get started.  

Joe Gallagher

With 19 years of experience and over 500,000 square ft of CAT B office fit-outs delivered in London’s most prestigious locations, Joe Gallagher is our CAT B fit-out project lead. His portfolio reflects over £110 million worth of commercial office fit-outs for customers ranging from banks, media brands, and tech companies to developers and management consultants.

Why we do it

By keeping buildings alive, we preserve their history while ensuring they remain relevant, sustainable, and functional in a changing world. Our work is about more than just refurbishment—it’s about creating spaces that inspire, support communities, and provide lasting value.

Let’s work together to transform spaces, ensuring they stand the test of time while meeting the needs of today and the future.

How we do it

A heritage of trust and reliability: With over 172 years of success, Willmott Dixon Interiors is part of one of the UK’s most established construction companies. Our long-standing reputation means you can trust us to deliver with the highest standards of quality, and that you are partnering with a company that is secure and dependable, especially in an industry where financial stability is crucial for project success.

Transparent and reliable project management: We prioritise on-time and within-budget delivery. Our clear communication and proactive approach ensure that you stay informed throughout the project, giving you peace of mind from start to finish.

End-to-end project management: From feasibility studies to design and delivery, our expertise ensures projects run smoothly, on time, and within budget.

Expert procurement support: We simplify the tender process and guide customers through procurement frameworks, ensuring compliance and efficiency.

Sustainability-focused solutions: With a dedicated in-house team, we align every project with our ambitious sustainability goals, minimising waste and integrating energy-efficient solutions.

 

What we do

We specialise in the fit-out and refurbishment of buildings across multiple sectors, from offices and healthcare facilities to hotels, retail, and secure environments. Whether it’s breathing new life into a heritage building, modernising commercial spaces, or ensuring critical environments remain fully operational during works, we are committed to delivering projects with precision and care.

Key areas of focus:

A trusted team and supply chain: Our people are what make us stand out. From project managers to site teams, we bring a wealth of experience and a proactive approach to every project. We also support our supply chain partners with a 28-day payment term and a commitment to fair treatment, ensuring high-quality materials and timely execution.

Seamless design and build delivery: If required, our integrated design and build services streamline the process from RIBA Stage 2 or 3 to completion, saving you time and effort.

Live environment expertise: We excel in delivering projects in occupied and secure environments with minimal disruption, ensuring business continuity and safety.

Long-Term partnerships: We believe in building relationships based on trust, performance, and transparent communication, ensuring every project we deliver contributes to your ongoing success. Many of our customers return to us time and time again, a testament to our commitment to quality and service.

Attention to detail: From appointment to final handover, we focus on creating environments that not only meet but exceed expectations. Our rigorous quality assurance processes ensure every element of a project is delivered with precision.

Sustainable refurbishments: We pledge to be net-zero operational carbon by 2030 and have a net-zero supply chain by 2040. Our projects focus on energy efficiency, waste reduction, and the use of sustainable materials.

TRUSTED TEAM AND SUPPLY CHAIN

We are supported by a trusted supply chain, guaranteeing the use of high-quality materials, and ensuring timely project execution. Our long-standing relationships allow us to deliver excellence on every project.

ATTENTION TO DETAIL

From our appointment to the final handover, we focus on creating office environments that not only meet but exceed your expectations. Our attention to detail ensures that your space is functional, beautiful, and aligned with your business goals.

SUSTAINABILITY

Our dedicated in-house team ensures that every project aligns with our ambitious sustainability goals. As a business, we are committed to achieving a net-zero status by 2030, and we hold ourselves accountable at every stage of our operations. From minimising waste through innovative recycling programs to selecting sustainable materials and incorporating energy-efficient practices, we focus on reducing environmental impact.

COMMITMENT TO LONG-TERM PARTNERSHIPS

We believe in building relationships based on trust, performance, and transparent communication. Our goal is to create long term partners, ensuring that every project we deliver contributes to your ongoing success.

SEAMLESS DESIGN AND BUILD DELIVERY

If required our integrated design and build services can streamline the process from RIBA Stage 2 or 3 to completion, saving you time and effort. With in-house design capabilities and relationships with external design partners across all disciplines it gives us full flexibility to develop a tailored approach for each project.

PROVEN EXPERTISE

With extensive experience in the commercial fit-out market, we understand how to deliver projects that meet your unique needs. Our team has completed a wide range of traditional and design & build, high-quality fit-outs across multiple sectors.

TRANSPARENT AND RELIABLE PROJECT MANAGEMENT

We prioritise on-time and within-budget delivery. Our clear communication and proactive approach ensure that you stay informed throughout the project, giving you peace of mind from start to finish.

A HERITAGE OF TRUST AND RELIABILITY

Backed by over 172 years of success, Willmott Dixon Interiors is part of one of the UK’s most established construction companies. Our long-standing reputation means you can trust us to deliver with the highest standards of quality, and that you are partnering with a company that is secure and dependable, especially in an industry where financial stability is crucial for project success.

Learning and Development

We believe continued learning and development is crucial to our team’s everyday needs. Our internal L&D system, Willmott Dixon University, supports a wide range of courses for all of our people to ensure they are best-equipped to perform well in their job roles.

We are able to offer unlimited opportunities to those with the ambition to take their career to the next level and work in a stimulating environment. By offering 4 levels of management development programmes, we are able to provide the skills you need to help reach your potential.

Professional Qualifications

We believe that our teams should continue to have ongoing development both in and out of construction and are committed to assisting them in becoming qualified within a professional qualification of their choice.

Management Development

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Technical Apprentice Programme

Apprenticeships are a great route into construction. At Willmott Dixon, apprenticeships are available in our business support teams and also through our supply chain partners or our sister company, Fortem, in trade disciplines such as bricklaying.

We offer some entry level positions for those who are looking to take their first steps into construction. With a paid apprenticeship you will earn while you learn and obtain a Level 3 qualification. You can apply following GCSEs; you don’t to have a construction background to complete an apprenticeship.

Work Experience

Work experience is a great way to get an insight into working at Willmott Dixon and is an ideal opportunity to experience the different jobs available, whether you are new to the world of work or looking for a change in career.

We are proud to offer unique work experience placements that give you the chance to work alongside highly qualified and experienced professionals. Gaining an in-depth understanding of both the technical elements and business skills that are required to succeed within construction and showing you a variety of teams that come together to complete a project, whether that be on site or in the office.

Interested? Get in contact: WDIworkexperience@willmottdixon.co.uk

Loyalty Rewards

After five years with us, you’ll join our 5-9 Year Club and celebrate annually with the other members. After reaching 10 years, you will join the prestigious Willmott Dixon 10 Year Club and celebrate along with Rick Willmott.

Private Health Care

We value your health care and wellbeing and that is why we offer free or discounted private health care that will avoid you NHS long waiting lists.

Salary and Profit Share

At Willmott Dixon Interiors we are proud of our people and sincerely believe that our success depends on them and their skills. We reflect our gratitude in the highly competitive salary we offer and review every year. In addition, we will thank you for your hard work with the percentage of our annual profit (subject to certain criteria) to the scope of reflecting our ‘one team’ nature.

Flexible Working & More

The best is yet to come! We give you a day off for your birthday (without using your holiday entitlement), early leave every Friday, dress down Friday once a month, Summer and Christmas events, and more. We have ambitions to be an employer of choice for those who either want to or need to work in a flexible and agile way. Experience it all when joining our team, we are looking forward to getting to know you.

Pension and Life Assurance

We strongly value your future and want to help you save for it, that is why we will contribute by 6% of your pension and you will be protected by Willmott Dixon Interiors Life Assurance Scheme (more details to come when joining).

Holidays

We commit everyday to promoting a healthy work/life balance that matches a competitive holiday allowance, the longer you stay the more you get. 

If the holidays allowance isn’t enough, you can take advantage of buying extra holiday entitlement each year.