For nearly five decades, Buro Happold has stood as one of the most respected names in engineering consultancy worldwide. The firm’s partnership with the Passive House Accelerator reflects a deep commitment to advancing low-energy, high-performance building design across every sector they touch. As an integrated consultancy of engineers, designers, and advisors, Buro Happold brings an unusual breadth of expertise to the challenge of creating buildings that are both beautiful and environmentally responsible. Their approach combines rigorous engineering analysis with creative problem-solving, allowing them to tackle some of the most demanding projects on earth. Understanding the fundamentals of passive house design provides important context for appreciating the sophisticated work this firm delivers. This article explores how Buro Happold has positioned itself at the forefront of sustainable engineering and why their work matters for the future of the built environment.
A Global Consultancy with a Sustainability Mission
Buro Happold describes itself as an international, integrated consultancy of engineers, consultants, and advisors. With offices spanning every inhabited continent, the firm has built a reputation for delivering exceptionally complex projects while maintaining a sharp focus on sustainability. Their stated mission is to deliver creative, value-led solutions for the benefit of people, places, and the planet. This is not merely marketing language. The firm’s leadership has embedded environmental performance into the core of how projects are conceived and executed. CEO Oliver Plunkett has emphasized that the firm’s heritage of tackling complex engineering challenges positions it perfectly to advise and design solutions that address climate change and resource scarcity. The values that guide the firm’s work are responsibility, curiosity, courage, and belonging. These principles translate into a culture where engineers are encouraged to push beyond conventional solutions and explore approaches that reduce carbon footprints, improve energy efficiency, and enhance occupant comfort.
The firm’s commitment to the Passive House standard is a natural extension of these values. Passive House design offers a rigorous, performance-based framework for achieving dramatic reductions in heating and cooling energy. Proper thermal insulation strategies for buildings are central to achieving these demanding targets. By partnering with organizations like the Passive House Accelerator, Buro Happold signals that they are not simply paying lip service to sustainability but are actively engaging with the most demanding standards in the industry.
Leadership and Organizational Growth
In 2021, Buro Happold made a significant statement about its growth trajectory by elevating 17 senior firm members to partner, effective May 1 of that year. The move added substantial depth to the firm’s leadership, particularly in the United States where several key appointments were concentrated. Among the new partners were two prominent women practitioners. Yasmin Rehmanjee, known for innovative structural engineering, and Julie Janiski, a recognized leader in sustainable, high-performance built environments, both joined the partnership ranks. Robert Okpala, who had led regional multidisciplinary teams for mechanical, electrical, and plumbing engineering on large complex projects, was also elevated. Panji Grainger, an MEP leader with global experience spanning stadiums, towers, and mixed-use developments across the United Kingdom, Italy, Russia, India, Malaysia, and the United States, became a partner as well.
The elevation also reflected Buro Happold’s strategic acquisition of brightspot strategy, a higher-education consultancy. Elliot Felix, brightspot strategy’s founder, became a partner and brought specialized expertise in solving the challenges facing colleges and universities. Jeremy Snyder, with almost two decades of experience in high-performance building and campus design, also advanced to partner. His credits include the Tower at PNC Plaza and the Pittsburgh International Airport Terminal Modernization. At the time, CEO Neil Squibbs described the new cohort as bringing broad geographical and industry expertise, diverse lived experiences, and energy that would drive the firm’s growth while supporting its commitment to shaping an equitable and sustainable future for the built environment.
Engineering Services Across the Building Lifecycle
Buro Happold offers a comprehensive range of services that span the entire building lifecycle. Unlike firms that specialize narrowly, Buro Happold provides integrated consulting and engineering that covers structural, civil, mechanical, electrical, and plumbing disciplines under one roof. This integration is particularly valuable for Passive House projects because the interdependencies between building systems are critical to achieving the stringent performance targets. Their expertise in LEED certification and green building standards complements their Passive House work. The following table summarizes the core service areas Buro Happold brings to sustainable building projects:
| Service Area | Description | Relevance to Passive House |
|---|---|---|
| Structural Engineering | Design of load-bearing systems, foundations, and frames | Thermal bridge-free detailing and structural efficiency |
| Building Envelope Consulting | Façade design, insulation strategies, airtightness | Core requirement for Passive House certification |
| MEP Engineering | Heating, cooling, ventilation, and electrical systems | Energy recovery ventilation and efficient HVAC design |
| Sustainability Advisory | Carbon modeling, lifecycle assessment, certification support | PHI and PHIUS certification pathway guidance |
| Façade Engineering | High-performance glazing, shading, and cladding systems | Optimized solar gain and thermal performance |
| Energy Modeling | Dynamic simulation and performance analysis | PHPP modeling and compliance verification |
By offering these capabilities as an integrated service, Buro Happold can address the complex trade-offs that arise when designing for Passive House performance. For example, the structural team can coordinate with the façade specialists to eliminate thermal bridges at connection points, while the MEP engineers size the ventilation system to meet the extremely low heating loads that Passive House design achieves. This level of interdisciplinary collaboration is difficult to achieve when multiple separate firms are involved.
Key Projects Demonstrating Passive House Principles
Buro Happold’s portfolio includes numerous projects that demonstrate the application of high-performance building principles similar to those found in Passive House design. While not every project seeks formal certification, the design strategies employed by the firm consistently reflect the same emphasis on energy efficiency, occupant comfort, and reduced environmental impact. Their work on the Tower at PNC Plaza, widely considered one of the greenest skyscrapers in the world, was featured in a detailed case study on the Tower at PNC Plaza highlighting its double-skin façade, natural ventilation chimneys, and solar chimney that drives airflow, resulting in 50 percent less energy consumption than a typical office tower.
Several other landmark projects illustrate this approach:
- Pittsburgh International Airport Terminal Modernization applies high-performance building strategies to a large public infrastructure project, demonstrating that the principles of energy efficiency and indoor environmental quality are scalable beyond residential and small commercial buildings.
- London College of Fashion represents Buro Happold’s work in higher education, where the firm delivered structural, building services, and sustainability engineering for a facility designed to ambitious carbon reduction targets.
- Grace Farms in the United States showcases how engineering can enable architecture that connects occupants with the natural environment while maintaining exceptional energy performance through careful envelope design and mechanical system selection. The use of advanced low-e glass technology in construction plays a significant role in balancing daylight access with thermal performance in such projects.
These projects share common themes: rigorous attention to the building envelope, integration of natural ventilation and daylighting strategies, and a commitment to measuring and verifying actual performance. These are the same principles that form the foundation of Passive House design, adapted to projects of varying scale and complexity.
The Role of Integrated Design in Achieving Certification
One of the key lessons from Buro Happold’s approach is the importance of integrated design. Passive House certification requires extremely low energy demand, which means every element of the building must work together. The building envelope must be continuous and airtight. The mechanical system must be highly efficient and properly sized for the reduced loads. The windows and shading must balance solar gain against thermal performance. Achieving this level of coordination demands that structural, mechanical, and architectural teams collaborate from the earliest stages of design. According to Passive House Institute US certification guidelines, integrated project delivery is one of the strongest predictors of successful certification outcomes.
Buro Happold’s structure as an integrated consultancy facilitates this collaboration naturally. When a single firm handles structural engineering, MEP design, façade engineering, and sustainability consulting, information flows more freely between disciplines. The thermal bridge analysis performed by the structural team feeds directly into the energy model maintained by the sustainability team. The ventilation rates calculated by the MEP engineers inform the airtightness targets that the envelope designers must achieve. This feedback loop, when managed within a single organization, reduces the risk of miscommunication and ensures that the Passive House targets remain achievable throughout the design and construction process.
The firm’s partnership with the Passive House Accelerator further amplifies this capability. The Accelerator serves as a catalyst for zero-carbon building by connecting practitioners, sharing knowledge, and promoting best practices. Through this partnership, Buro Happold gains access to the latest research, tools, and case studies in Passive House design, while contributing its own expertise back to the community.
Future Directions for Sustainable Engineering Practice
Looking ahead, Buro Happold’s trajectory suggests several important trends for the engineering profession. First, the integration of sustainability consulting with traditional engineering services is likely to become the norm rather than the exception. Clients increasingly expect that their engineering partners can provide carbon modeling, lifecycle assessment, and certification support alongside structural and MEP design. Firms that cannot offer this integrated service will find themselves at a competitive disadvantage. The broader adoption of energy-efficient design principles from the US Department of Energy reinforces this trend across the construction industry.
Second, the growing adoption of Passive House standards across different building types and climate zones creates opportunities for firms that invest in this expertise. Buro Happold’s presence as a Passive House Accelerator partner signals that they recognize this trend and are positioning themselves to serve clients pursuing certification in residential, commercial, institutional, and even industrial projects. The principles of continuous insulation, airtight construction, high-performance glazing, and energy recovery ventilation are increasingly being adopted even in projects not seeking formal certification, because they deliver measurable benefits in occupant comfort and operational cost.
Third, the breadth of Buro Happold’s portfolio, spanning projects from cultural institutions to transportation infrastructure to higher education campuses, demonstrates that high-performance design is applicable everywhere. The firm’s work with organizations such as the United Nations, UNESCO, and C40 Cities indicates that the demand for sophisticated engineering advice on sustainability is growing at the highest levels of policy and governance. Engineers who understand both the technical details of Passive House construction and the broader context of urban sustainability will be well positioned to lead the next generation of building projects.
Through its integrated service model, deep bench of experienced partners, and commitment to performance-based design, Buro Happold offers a compelling model for how engineering firms can contribute to a more sustainable built environment. The firm’s nearly fifty-year history of tackling complex challenges gives it the credibility and experience needed to guide clients through the transition to low-carbon construction, one project at a time.