2027 Awards Judges

Jan is Technical Director in Stantec’s Buildings UK teamworking at the intersection of engineering delivery and digital transformation. A Chartered Engineer (CEng MCIBSE) with 13+ years’ experience in mechanical engineering and building design, he leads BIM and digital engineering strategy, embedding ISO 19650 aligned information management, strengthening digital governance, and helping teams deliver consistent, high-quality, information‑rich outcomes.  His focus is on practical, scalable digital delivery: standardising workflows, improving collaboration through modern CDE approaches, and developing automation that reduces effort while improving quality and predictability. He is passionate about mentoring, capability building, and ensuring digital tools genuinely support the people using them and the outcomes they are responsible for delivering.

His leadership is essential in navigating the evolving design and construction landscape, embracing innovation, and maintaining a competitive edge in a digitally disrupted world. Jan develops forward-thinking strategies aligned with market trends, driving growth, expanding opportunities, and supporting both individual and organisational success. 

Jennifer is an electrical engineer with 8 years of industry experience, working in Cundall’s building engineering team in London.  She has experience delivering electrical design and working and collaborating across business sectors including commercial, residential, mixed use, education, and defence. Jennifer's recent experience centres around delivering sustainable net-zero carbon solutions for clients, developing decarbonisation strategies and advising on building performance.  Jennifer is an IEng ACIBSE Professional Member and has previously been involved in several committees. She is now a CIBSE council member where she aims to support and champion, building performance and young professionals in the industry. Jennifer is also the recipient of industry awards CIBSE Graduate of the Year 2020 and WICE Best Young Women Engineer 2021. 

I am Head of Technical Services for UK & Ireland at Sodexo, with 30 years’ experience across Hard FM, asset management and statutory compliance within complex, multi‑site estates. My work focuses on translating engineering standards, regulatory requirements and best‑practice guidance into practical, scalable solutions that improve safety, resilience, compliance and long‑term asset performance. I provide senior technical leadership across diverse portfolios, with particular expertise in planned maintenance governance, asset risk, competence assurance, data quality and lifecycle strategy. I am a contributor and author of national guidance for CIBSE, BSRIA and BSI, including updates to CIBSE Guide M, and remain actively involved in shaping industry standards through professional boards and working groups.  

Mina Hasman is a globally recognised sustainability expert and climate advocate, dedicated to transforming the built environment. As the Sustainability Director at Skidmore, Owings & Merrill (SOM), she leads innovative projects worldwide. Mina played a key role in developing the UK’s Net Zero Carbon Buildings Standard and pioneered SOM’s Whole Life Carbon Accounting methodology. She authored the RIBA Climate Guide—the first book aligning the UN Sustainable Development Goals with the built environment—and leads Climate Framework, uniting academia and industry in building a sustainable, equitable and climate-resilient future. She serves as the UNEP/GlobalABC Focal Point for the Commonwealth Association of Architects (CAA) and chairs the UK Construction Industry Council’s Climate Change Committee. She is also Regional Vice President for Europe at the CAA and contributes to multiple international committees including the RIBA Council, RIBA Practice & Policy Board Committee, the Architects’ Council of Europe and World Green Building Council. Mina lectures at UCL (The Bartlett) and Manchester School of Architecture and is a frequent international keynote speaker. Recognised by TIME magazine as one of the world’s 100 most influential climate leaders, she was awarded an Honorary Doctorate by University of Built Environment under King Charles III’s patronage.
Mina has experience in a wide variety of projects in the UK, Europe, the Middle East and Asia, bringing a greater understanding of sustainable design in different climatic, social and regulatory contexts. Her expertise and years of climate leadership has led the TIME Magazine to identify her as one of the 100 most influential climate leaders in the world. For her contribution to the advancement of industry and academia, she was honoured with an Honorary Doctorate Degree by UCEM, under the patronage of King Charles III.
Mina is actively involved in the RIBA Council and the Practice & Policy Board Committee, UNEP/GlobalABC’s COP Task Force, Commonwealth Association of Architects (as Regional Vice President for Europe), UK CIC’s Climate Change Committee (as Chair), the UK Net Zero Carbon Buildings Standard (as the Stakeholder Engagement Lead) and the Architects’ Council of Europe.
She also regularly contributes to the wider climate change and wellbeing debate in her role as tutor at various academic institutions (including the UCL, The Bartlett & Manchester School of Architecture) and as a regularly-invited speaker at many international events. Mina is also the leader of the ‘Climate Framework’ - a global, transdisciplinary initiative, aiming to create a common language around climate change in the built environment context and to unite industry and academia for effective, long-lasting climate action. She is also the author of the ‘RIBA Climate Guide’ - structured around the Climate Framework’s key themes - which equips the built environment professionals with essential knowledge to mitigate the impacts of climate change.

Marianne is People Powered Retrofit’s co-founder and Technical Director, leading technical work across our services. As a qualified architect, Marianne brings over a decade of retrofit expertise. This includes retrofit at scale in social housing, community-led projects, and work on individual homes. Much of this was at URBED and in collaboration with Carbon Coop, prior to PPR being established as an independent organisation. She contributes to national retrofit standards, policy, and strategy. In collaboration with our partners and in our consultancy she continues to work to develop new tools and insights to support better retrofit.

Jess Hrivnak is the RIBA’s Sustainability Lead, and member of the UK Net Zero Carbon Buildings Standard (UKNZCBS)’s Technical Steering Group. She spearheads the Institute’s work on net zero and climate action guidance. She is responsible for the RIBA’s 2030 Climate Challenge guidance and is the author of the RIBA’s Chartered Practice Sustainable Development Toolkit, published to enable Practices to measure and improve their environmental, social, and ethical business impacts. She works collaboratively within the Institute and with partner organisations to improve climate literacy, align design targets, strategies and processes. She is frequent public speaker and is passionate about bridging gaps between sectors and disciplines to enable better guidance and action to improve planetary and human health outcomes. She guest tutors and lectures at various Universities on environmental design and sustainability policy.

Chartered Engineer (CIBSE) with extensive experience in designing data centres and complex buildings. I aim to mobilise engineering to achieve efficient, sustainable outcomes. I lead the sustainability team at RED Engineering, where we deliver advisory & engineering solutions for data centre projects worldwide. Our work is divided into: Building Certification, Energy & Carbon, Advisory, and Sustainability. Building Certification: LEED, BREEAM, UK NZ BS. Energy & Carbon: PUE (Power Usage Effectiveness), WUE (Water Usage Effectiveness), CUE (Carbon Usage Effectiveness), ASHRAE 90.4/90.2 compliance, IES modelling, embodied carbon assessments, energy auditing (ESOS, EEDs, EN 50600, SECR, etc.), EPCs, and Part L compliance. Advisory: Site selection & due diligence, asset valuation, and technical auditing. Sustainability: We oversee all of RED’s global environmental sustainability policies and strategies, including GHG (Greenhouse Gas) accounting and reporting. I love to watch rugby (and wish I was still young enough to play)!   https://www.linkedin.com/in/ismacdougall/

Esther is a Building Services Engineer with over 20 years of international experience. After spending the majority of her career in UK-based consultancies, she transitioned to Singapore over four years ago to specialise in Data Centre Design. Currently, she represents JLL as a Technical Lead, seconded to a global Data Centre Hyperscaler client. 

David is the Chairman and Co-Founder of Senze Ltd and is Chairman of the Governance Board of the UK Net Zero Carbon Buildings Standard.  He is also a Director of the BPF and of the Landaid Charity and sits on the Advisory Boards of Construct Zero and Standard Gas Technologies Ltd.

David joined Argent in 1990, he was appointed Joint Chief Executive in 2006 and Managing Partner of the new Argent LLP in 2012.  He became Senior Partner in 2019 and Chairman of Related Argent in 2021, and retired in May 2025.

David read architecture at Cambridge and is a member of the Royal Institute of British Architects.

Chris Powell is a digital transformation leader specialising in building performance, smart systems, and sustainable design. With over 20 years' experience in design and digital innovation, he champions data-driven approaches to digital construction and mission-critical infrastructure, helping deliver intelligent, net-zero, high-performing built environments through collaborative leadership and forward-looking strategy globally.

Mathew Stark is a Chartered Mechanical Engineer at Cundall with seven years of experience delivering high‑performance, low‑energy buildings across London and the South West. He leads mechanical designs on a mix of new‑build and retrofit commercial, residential and mixed‑use projects, with a strong focus on building performance and in‑use outcomes. Mathew has a particular interest in embodied and whole‑life carbon, specialising in early‑stage design optioneering to support informed, low‑carbon decision‑making alongside operational energy performance. He has been involved in projects targeting NABERS performance outcomes as part of multidisciplinary design teams. Mathew previously chaired the CIBSE Young Engineers Network in London, contributing to professional development, knowledge sharing and industry engagement within the building services community.

Dr Milena Stojkovic FCIBSE, RIBA is an architect and sustainability engineer. She is a Design Director at AtkinsRéalis in Dubai, focused on driving design innovation for projects across the Middle East. Prior to joining AtkinsRéalis, she was an Associate Partner at Foster+Partners London, where she led multidisciplinary teams on projects spanning the UK, North America, Asia, Australia, and the Middle East. She oversaw the integration of environmental design and sustainability strategies for Apple's global flagships, high-rise developments, airports, and healthcare facilities. She has been a tutor at the UCL Bartlett and has made significant contributions to industry standards and practices through organizations such as LETI, IATA and CIBSE. Milena is a CIBSE Fellow and currently serves as co-chair of the CIBSE Health & Wellbeing Working Group. 

Lynne is an Architect, now a design consultant and Visiting Professor, and is a Design Advisor for local and national Design Review Panels, the Design Council and RIBA Competitions. She co-founded and Chairs the National Retrofit Hub https://nationalretrofithub.org.uk/ and is buildings lead for the CLC Green Construction Board. She Chairs the Architecture Commission for the Government of Jersey and is a Board member of several leading industry organisations. Previously she chaired the Good Homes Alliance and RIBA’s Sustainable Futures Committee.

After completing an honours degree in Electrical and Electronic Engineering Peter joined Thorn Lighting in 1985. His roles involved electronics R+D, electronics manufacturing support, and developing and managing the UK CAD database across three manufacturing sites. In 1991 Peter joined the Lighting Applications Department, managing the section developing technical design software and managing photometric data. He also did optical design and managed the laboratory photometers and integrators.  In 2008 Peter became Head of Strategic Lighting Applications for Thorn Lighting, participating in external standards and learned bodies’ activities, speculative applications research projects, supporting the Thorn Academy of Light, and the development of lighting techniques and tools. Peter is the current Vice-President Standards in CIE, chair of ISO/TC 274, and is involved in a wide number of BSI, CEN, and ISO committees. He is heavily involved in the LIA and LightingEurope and is an associate editor for Lighting Research and Technology.

Yara Machnouk is a Sustainability Associate at Introba with a background in Architecture and Environmental Engineering. She has spent the past seven years working across net zero strategies, embodied carbon, circular economy and building physics, helping to deliver more sustainable buildings and infrastructure.  Yara has played a role in shaping industry approaches to embodied carbon, contributing to the development of CIBSE TM65 and co-authoring TM65.1. She is also a verified TM65 trainer, supporting engineers and manufacturers in understanding and reducing the carbon impact of building services.  Alongside her technical work, Yara is passionate about supporting the next generation of engineers. She is a line manager and CIBSE chartership mentor, and regularly contributes to knowledge-sharing sessions, panels and industry groups including the NLA Circular Economy Special Interest Group.  She is particularly passionate about translating sustainability from ambition into practical, measurable outcomes across projects and the wider industry.

Read Yara's CIBSE Journal article on embodied energy: Embodied energy: the whole picture - CIBSE Journal

Eszter Gulacsy is a Technical Director for Sustainability at Mott MacDonald, based in Cambridge, where she provides senior technical leadership on sustainability and building performance across complex built environment projects. Her work focuses on operational energy, indoor environmental quality and the use of robust benchmarking and metrics to support evidence based decision making throughout design and delivery.  With an academic background in chemistry and environmental engineering, Eszter brings a rigorous, analytical approach to the assessment of building performance intentions and outcomes. Alongside project delivery, she is an active author and contributor to industry guidance, professional publications and technical thought leadership, and is extensively engaged across industry forums, expert groups and professional committees shaping best practice in building performance and sustainability. Her work reflects a strong commitment to transparency of evidence, technical quality and continuous industry improvement.

Miriam is a Chartered Mechanical Engineer and the 2026 CIBSE Building Performance Engineer of the Year, with over 15 years of experience in the built environment. Her career is defined by a holistic and strategic approach to decarbonisation, building performance optimisation, and building services design. She thrives on translating complex technical challenges into sustainable, operational realities for diverse portfolios—from iconic commercial buildings to sensitive heritage assets and community-led developments in emerging economies.   Ozanne Consulting - https://www.linkedin.com/company/ozanne-consulting/

Hakeem Makanju is a Chartered Building Services Engineer with nearly 30 years of experience across design consultancy and facilities management in both the private and public sectors. He currently works as a Building Services Manager at Transport for London (TfL), with specialist expertise in electrical services systems, safety management, statutory compliance, sustainability and operational performance. Hakeem is an experienced international judge, bringing a balanced, evidence based and inclusive approach to assessment. He is an active leader within the Chartered Institution of Building Services Engineers (CIBSE), serving as Chair of the Minority Ethnic Groups (MEG) Sub Panel, Vice Chair of the Home Counties South West Region and a contributor to the Equality, Diversity and Inclusivity (EDI) Panel. Through his judging and professional roles, he champions technical excellence, ethical practice and the recognition of diverse talent across the built environment.