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Retrofit Meets: Solutions for Decarbonising Heritage Estates

Wed 5 Jun 2024, 6-7.30pm
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Retrofit Meets is an in person series of panel events bringing together experts in the built environment. These are held in the seminar suites of the Building Centre.  

Organised thematically, panellists will discuss their latest research and completed or on going projects, some of which are displayed in the Retrofit 24 exhibition. These discussions will present the aims, challenges and outcomes of each project. The event format will also allow for dialogue between the panellists offering our attendees new insights into retrofit. We encourage audience participation during the Q&A portion of the evening and look forward to meeting you there.  

Chaired by Josh McCosh of van Heyningen & Haward Architects, he will introduce the options (such as insulation, windows, heating) and challenges when improving the energy efficiency of heritage buildings. The panellists will explain how their products can be applied, highlighting examples of use through heritage case studies. Josh will be joined by Chris Newman of Mitsubishi Electric, Steve Richmond from REHAU and Dave Tiller from Ventrolla. James Basey, an architect and surveyor working for the National Trust, will also join the panel, considering the range of possibilities and decisions when retrofitting estates with historical value.

Please join us for the discussion as a Q&A will follow after the presentations. Booking is free and drinks are kindly provided by REHAU.


  • Josh McCosh (Partner- van Heyningen & Haward Architects)
  • James Basey (Architect/ Building Surveyor- National Trust)
  • Chris Newman (Zero Carbon Design Manager- Mitsubishi Electric)
  • Steve Richmond (Head of Marketing and Technical- REHAU)
  • Dave Tiller (Technical Surveyor- Ventrolla)

Josh worked at several small practices before joining van Heyningen & Haward Architects. The first project he worked on was the Chinese Picture Gallery which set the tone for subsequent projects centred around the creative reuse of listed buildings or sensitive sights. Josh is responsible for several education programmes including the Classics Faculty at Oxford University and the refurbishment of Chelmsford College’s two sites.

James is a RIBA chartered architect and currently works for the National Trust looking after a portfolio of properties including temples, watermills and mansions in Hampshire and the South Downs. His current work focuses on protecting heritage buildings from the effects of climate change through the lens of mitigate, manage, adapt. Prior to joining the Trust he worked in private practice in London and the South East specialising in the retrofit of historic buildings.

Chris has worked at Mitsubishi Electric for over 15 years and has held a variety of roles in central plant, commercial heating, sales, project engineering and energy strategy. Throughout his career, his interest in carbon reduction has grown and Chris is now leading the industry in developing an approach that will help put the nation firmly on the road to Net Zero. This includes the creation of a ‘Net Zero Roadshow’ for Mitsubishi Electric customers. Chris also writes regular blogs for Mitsubishi Electric with his last being a dissection of the Chris Skidmore Report – Mission Zero.

Steve is Head of Marketing & Technical for REHAU’s Building Solution division and has worked in the renewable heat industry for over 17 years. He represents REHAU Ltd at various industry bodies for district heating such as the ADE and UKDEA and is also currently President of the British Plastic Federation’s Pipe Group. REHAU employ over 20,000 people worldwide and are one of the UK market leaders in polymer district heating pipework and the only UK manufacturer of PE-Xa district heating pipework.

Dave's world-renowned technical expertise is unmatched with forty- three years in the fenestration industry. He is often called upon to speak at national events and delivers RIBA CPD for Ventrolla. Having worked for Ventrolla for over 15 years, Dave is a trusted expert who oversees the Ventrolla Academy, delivering training, CPDs, and technical advice to all surveyors.


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