Ernest joined the practice in 1987; his early projects include the Amenity Building at the Inland Revenue Centre in Nottingham and the Mound Stand at Lord's Cricket Ground.
He was made a Project Director in 1999 and has subsequently overseen a wide range of projects including the Rose Bowl at Hampshire County Cricket Club, a Crossrail Oversite Development at Bond Street and masterplans for University College Dublin, Brighton Marina, Lord's Cricket Ground and Science Central in Newcastle. He also worked on the masterplan and subsequent development at the Arc in Bury St Edmunds, a mixed-use scheme including retail, housing and a new theatre, the Apex.
Since becoming a Director in 2002 and a Partner in 2010, Ernest has headed teams working on a new faculty building for the University of Brighton at Falmer and large cricket stadia in Pune, Chennai and Kerala, each at around 40,000 seats.
Ernest has also built up extensive experience in healthcare, leading teams on several private hospitals in the UK for an innovative new provider and a £60 million redesign for the Royal National Orthopaedic Hospital in Stanmore.
He is currently heading teams working on the new £42 million Institute for Immunity and Transplantation for University College London and the Royal Free Charity and a new music school for King's College School, Wimbledon.
Ernest has taught at Aarhus School of Architecture in Denmark, University College London and Queen's University Belfast and has lectured widely. In 2010 he was a juror for the Scottish Design Awards.