Thirty High sets an example for the retrofit of office buildings found in city centre locations across the UK and further afield. By retaining the primary structure and core and refurbishing the existing facades, the team have sought to maximise the building's energy efficiency, achieving a target operational energy use that is comparable to that of modern commercial buildings Targeting WELL Core Platinum, Thirty High will provide the amenity space desired by modern office occupiers. The design team have aimed at achieving maximum performance improvement with minimum embodied energy emissions by retaining and upgrading the facade and improving airtightness with the project on track to achieve  BREEAM ‘Outstanding’ and NABERS 5*. This 60-year old building demonstrates that revitalising an existing asset can deliver top-quality space at a fraction of the carbon emissions of new build. Chairperson Ross Boulton, Sustainability Lead - Buro Happold Speakers Gregor Haran, Sustainability Manager - Landsec Kirsty Bruce, Sustainability & Physics Engineer - Buro Happold Adrian Lindsay, Associate - Buckley Gray Yeoman