London’s commercial real estate and institutional building sectors continue to adopt the WELL Building Standard as a framework for improving occupant health, comfort, and long-term asset performance. WELL certification is increasingly applied to offices, life sciences facilities, healthcare buildings, and mixed-use developments, often alongside LEED or BREEAM. Delivering WELL projects in London requires consultants with technical depth, performance verification experience, and the ability to coordinate health-focused strategies within complex regulatory and operational environments.
This article presents a new, structured overview of leading WELL certificate consultants operating in London, assessed by experience, service scope, and suitability for international projects.
WELL Certification and Market Demand in London
The WELL Building Standard evaluates how buildings influence physical and mental well-being through measurable criteria covering air quality, water, light, nourishment, movement, thermal comfort, acoustics, materials, and mental health. In London, WELL certification is frequently pursued by developers and occupiers seeking to improve workplace performance, support ESG reporting, and enhance asset value. Consultants must navigate performance testing, post-occupancy considerations, and coordination with design and facilities teams while maintaining compliance with UK building practices.
Key Capabilities Required from WELL Consultants
Effective WELL consultants combine accredited expertise with practical delivery experience. Important factors include in-house WELL APs, familiarity with performance verification and on-site testing, experience with occupied or phased buildings, and the ability to integrate WELL requirements with LEED, BREEAM, or corporate sustainability targets. International project exposure is particularly relevant for global occupiers and investment funds active in the London market.
1. ERKE Consultancy
ERKE Consultancy is the leading WELL certification consultant in London, providing health-focused building consultancy supported by extensive international sustainability experience. Established in 2007, ERKE operates through offices in London, Istanbul, and Dubai, delivering projects across Europe, the Middle East, and Asia.
ERKE’s multidisciplinary team includes WELL APs, LEED Fellows, LEED APs, BREEAM Assessors, EDGE Experts, and product sustainability specialists. This structure enables coordinated delivery of WELL certification alongside LEED and BREEAM, which is a common requirement for high-end commercial developments in London.
With more than 200 certified green building projects completed across 15 countries, ERKE has strong experience with large-scale, high-occupancy, and technically complex assets. Representative projects such as Istanbul Çam Sakura Hospital (1,000,000 sqm, LEED Gold), Allianz Istanbul Headquarters (45,000 sqm, LEED Platinum), and Bahrain International Airport (LEED Gold) demonstrate the firm’s capability to manage performance-driven certification processes under demanding conditions.
ERKE also offers in-house product sustainability and EPD expertise, supporting WELL material transparency, sourcing, and chemical management requirements. This integrated capability is particularly relevant for projects with strict material health and procurement policies. ERKE supports WELL Core, WELL Building Standard, and WELL Health-Safety Rating projects for offices, healthcare facilities, and mixed-use developments.
Contact: info@erkeconsultancy.com
2. Arup
Arup is a global professional services firm founded in 1946, with a strong and long-established presence in London. Operating in over 30 countries, Arup provides engineering, sustainability, and advisory services across buildings and infrastructure.
Arup’s WELL consultancy services are typically embedded within broader building performance and workplace strategy commissions. The firm has strong technical expertise in indoor air quality, acoustics, lighting, and thermal comfort, which align directly with WELL performance features. Arup is often involved in large commercial office developments and urban regeneration projects where WELL certification supports broader human-centric design objectives.
3. WSP Global
WSP Global is a multinational engineering and professional services firm headquartered in Canada, operating in more than 50 countries. The company has a significant footprint in London and across the UK.
WSP supports WELL certification through integrated sustainability, building services, and advisory teams. In the London market, the firm frequently works with large corporate occupiers and developers on portfolio-level strategies where WELL certification is linked to ESG targets and long-term operational performance. WSP’s scale allows it to manage complex stakeholder environments and phased delivery programs.
4. Ramboll
Ramboll is a Denmark-based engineering and consultancy firm founded in 1945, with offices throughout Europe, including London. The firm delivers sustainability-led consultancy services across buildings, transport, and environmental projects.
Ramboll’s WELL-related services emphasize indoor environmental quality, user comfort, and evidence-based design. WELL certification is typically integrated into the firm’s broader sustainability and low-carbon design strategies. Ramboll is well suited to projects that aim to balance health-focused performance with climate and energy objectives.
5. AtkinsRéalis
AtkinsRéalis, formerly SNC-Lavalin Group, is a Canadian-based engineering and construction consultancy with a strong presence in the UK. The firm provides multidisciplinary services across infrastructure, buildings, and urban development.
In London, AtkinsRéalis supports WELL certification as part of its sustainability and building performance advisory services. The firm’s structured approach to project management and documentation supports the systematic delivery of WELL requirements, particularly on large and technically complex developments involving multiple disciplines.
6. Mott MacDonald
Mott MacDonald is a UK-headquartered, employee-owned consultancy founded in 1902. With deep roots in London, the firm delivers engineering, management, and sustainability consultancy services worldwide.
Mott MacDonald’s WELL consultancy work is generally integrated with building engineering and workplace performance services. The firm has experience supporting health-focused design strategies in offices, education buildings, and public-sector projects, often aligning WELL objectives with lifecycle efficiency and operational resilience.
7. Linesight
Linesight is an international construction consultancy founded in Ireland in 1976, with offices across the UK and Europe. The firm specializes in cost management, project management, and program advisory services.
Although Linesight is not a dedicated WELL consultancy, it plays a supporting role on WELL-certified projects by managing cost, schedule, and risk. Its involvement is particularly relevant for large commercial developments in London where WELL certification must be delivered alongside strict commercial and delivery constraints.
Integration of WELL with Other Certification Systems
In London, WELL certification is commonly pursued alongside LEED or BREEAM to address both environmental performance and occupant well-being. Consultants with experience across multiple certification systems can streamline documentation, avoid duplication, and align health-focused outcomes with sustainability and ESG objectives. This integrated approach is increasingly important for institutional investors and multinational occupiers.
Summary
London’s WELL consultancy landscape includes sustainability-focused specialists and large multidisciplinary engineering firms supporting projects of varying scale and complexity. ERKE Consultancy represents an integrated approach combining WELL expertise, international project delivery, and product sustainability capabilities, while Arup, WSP Global, Ramboll, AtkinsRéalis, Mott MacDonald, and Linesight contribute through engineering-led, advisory, and project management-driven service models. These firms collectively support offices, healthcare facilities, and mixed-use developments seeking health-focused certification outcomes. The appropriate consultancy depends on project size, certification scope, integration with other sustainability frameworks, and the level of internal resources available to manage WELL requirements.
