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Session One

Fabric First - Reimagining Building Performance: A Fabric-Led Systems Approach

Joel Callow

Joel Callow

Founding Director, Beyond Carbon Associates

Dr Joel Callow is a highly experienced leader in environmental building design, specialising in natural daylight, Passivhaus and climate resilience. He has a PhD in natural daylight in buildings and has worked on a range of Passivhaus projects from large-scale housing to offices to CL3 laboratories. His focus is on highest quality and best value buildings that delight occupants, and he speaks regularly on better buildings and the challenges of climate change.

Kathryn Dapre

Kathryn Dapre

Head of Sustainability, CALA Group Ltd

Kathryn Dapré is a sustainability leader with over 30 years working in this topic across roles in the public and private sectors and academia . She is currently Head of Sustainability for Cala Group Ltd, one of the UK’s major housebuilders, where she is responsible for delivering their Sustainability Strategy and overseeing all sustainability reporting activity. Under her tenure, Cala’s Scope 1 and 2 emissions have fallen by over 40%, whilst business growth has remained consistent. She has also overseen the launch of Cala’s Urban Wildlife Strategy and Community Pledge initiatives. She is an active member of the Future Homes Hub which bring UK housebuilders together to collaborate on key industry issues in relation to sustainability, including embodied carbon and sustainability reporting. Prior to working for Cala, Kathryn spent over 9 years as Head of Energy and Sustainability for NHS National Services Scotland and was also a previous chair of the Sustainability Scotland Network.

Session Two

Renewable Energy Sources - Renewables in Context: Performance-Driven Integration Strategies

Richard Hipkiss

Richard Hipkiss

Energy and Sustainability Director, Elemental Consulting Group

Richard Hipkiss is Energy and Sustainability Director and a founding leader of Elemental Consulting Group, with over 30 years of engineering experience across the energy, construction, and sustainability sectors. An Incorporated Engineer and member of the Chartered Institute of Building Services Engineers (CIBSE), Richard brings deep technical expertise in energy efficiency, environmental compliance, and low-carbon strategy.
Recognised for his practical, jargon-free approach, Richard has built a strong reputation for guiding businesses through complex carbon reduction journeys—balancing innovation, regulation, and real-world delivery. His work often bridges the gap between traditional engineering and emerging technologies, helping clients leverage digital tools and data-driven insights to drive measurable impact.
As a speaker, Richard offers honest, engaging commentary on net zero strategy, energy innovation, and the future of sustainable building. He is committed to long-term partnerships and driving meaningful change across the built environment.

Session Three

People First - People FIrst: Engineering Net Zero with Human-Centred Metrics

Vic Tink

Vic Tink

Co-founder, Klimatise

Victoria is the co-founder and CTO of Klimatise, a software company that uses people as thermostats, creating comfortable and low energy workplaces by asking people how they feel. Victoria did her doctorate trained as a building scientist and has been doing research in this field for over a decade. She is passionate about tackling climate change through reducing energy demand of buildings and maintains strong links with academia and is currently a visiting professor at Loughborough University. Prior to this she worked for the national government and was responsible for leading the development of the Future Homes Standard.

Tom Randall

Tom Randall

Associate Director - Building Performance, Arup

Tom leads Arup’s UKIMEA building performance services and is global building performance and systems skills network leader. This covers services and expertise that get under the skin of how buildings are actually performing in operation and advising how to deliver sustained improvement: operating efficiently to provide comfortable, productive, safe environments.  This delivers immediate operational benefits alongside contributing to reducing capital costs and meeting mandatory and voluntary ESG objectives.
and reporting requirements.

Services Tom leads cover core technical expertise relevant to most sectors in investigating and improving the performance of building services systems, occupant surveys, and change management – improving alignment of organisational practices with ensuring buildings perform well on a daily basis.

Jon Belfield

Jon Belfield

MD at InTandem Systems Ltd

After the completion of an apprenticeship in Machining and Fitting followed by a BSc in Engineering with Business Studies in the mid-1980’s, Jon started his career in the Building Services sector with Landis and Gyr as a Sales Engineer and progressed to a Senior Project Engineer.

 

Over the subsequent decade Jon developed his skills/experience of controls through a variety of different challenges ranging from telephone-controlled lighting systems to medical electronics, process controls and machine automation. After 12 years of controls experience, he identified a gap in the market for a customer-led (as opposed to product-led) controls company and InTandem Systems Ltd was formed. This 35+ year career has enabled Jon to experience and contribute to an extensive range of projects and initiatives in the controls sector and to support the development of future BMS Controls Engineers. He is a past President of the BCIA, a Fellow of CIBSE, a CIBSE Council Member, Chair of the CIBSE IT & Controls Group, Chair of the CIBSE AI Working Group, a Chartered Engineer, a UCL Industry Advisor, an EPA Assessor for the BMS Trailblazer Apprenticeship and promotes professional development for ALL Building Services Engineers.

Session Four

Research, Policy, and Future Planning

Eszter Gulacsy

Eszter Gulacsy

Technical Director - Sustainability and ESG, Mott MacDonald

Eszter is a Technical Director for Sustainability and ESG, based in Cambridge in Mott MacDonald’s Advisory unit.  She serves as discipline lead for sustainability, providing technical leadership, supporting projects with specialist advice and setting technical standards.  She is also a project director, offering consultancy services to clients globally including the private sector, governmental bodies and other buildings and infrastructure clients.   Eszter holds several professional qualifications, is registered with Engineers Europe and is a fellow of the Chartered Institute of Building Services Engineering.  She has held positions in advisory roles at the World Economic Forum, UK Green Building Council and University College London.

Becci Taylor

Becci Taylor

Director - Retrofit at Scale Leader, Arup

Becci Taylor is a director at Arup, where she leads the Retrofit at Scale and Sustainable  Housing services, taking a whole-system approach to delivering the best outcomes from our built environment.  She directs strategic research, develops strategy, delivers physical projects and authors industry guidance to deliver transformational change towards a sustainable and resilient built environment optimised for people’s needs; led by joining up problems to produce the best outcomes. Becci’s expertise lies in integrating diverse disciplines from economics to implementation, with a background in integrated sustainable design, building services engineering and physics. She leads a design-led team providing building decarbonisation and resilience strategies.
 
Becci is a CIBSE Fellow and Design Council Expert, working with a wide range of industry stakeholders to support positive change.  She sits on the CIBSE Homes for the Future group and leads Overheating Knowledge Generation.
 
Current relevant and recent projects include: Homes that Don’t Cost the Earth, a coalition building project to deliver affordable housing within planetary boundaries by designing combinations of physical and economic tactics;  Building Climate Justice, a report showing why we need to fix both the climate emergency and the housing emergency with Shelter; Warmer Homes London Retrofit Delivery Model; as well as a range of new build and retrofit sustainable building engineering projects.

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