Layzell was born and then educated in Jersey at Victoria College Preparatory and then at Hautlieu School. He helped found the island's hospital radio service, in 1975, as a presenter and later producer of the weekly political programme Midweek. In 1977 he joined Channel Television as a junior reporter, then continuity announcer, before returning to the newsroom as a journalist. He produced and directed a number of documentaries for the ITV network including Summer 1940, Around Britain and The Dakota: 1935–1985 marking the fiftieth anniversary of the first flight of the Douglas DC3 airliner. From 1980 he was a regular presenter of the nightly news programmeChannel Report and anchored the station's coverage of the Budget and general elections. In 1988, he left Channel Television to form Colonial American which, through its trading arm Colonial Pictures, has become one of Britain's top 150 independent production companies. As producer and director his early credits included The Only Way to Cross: 150 years of Cunard, The Best of Europe and Mansion: Great Houses of Europe – a series of forty programmes with Marcus Binney, architecture correspondent of The Times. More recently he has written, produced and directed Art Deco Designs and In Search of Style – both with the actress Maureen Lipman – for UKTV and ITV, The Flying Picnic for ITV Anglia and Sky Travel, Garden Makers London Visions with Peter Ackroyd, and Peter Ackroyd's Venice. He directed City at War and Legacy of War jointly presented by veteran CBS newsman Walter Cronkite and ITV News anchor Alastair Stewart. The first of these looks at the reporting of the Second World War by correspondents such as Edward R Murrow, the second examines the post-war re-construction of Europe and the onset of the Cold War. For Discovery Channel he produced Britain's Greatest Ships and for Sky Arts the long-running series Auction. His latest work is in 3D. For Sky 3D he produced and directed Treasure Houses of Britain with Selina Scott, showcasing Blenheim Palace, Chatsworth, Boughton House, Holkham Hall and Burghley House. In 1990 he joined Marcus Binney, President of SAVE Britain's Heritage, to save Jersey's Government House from demolition. After a campaign which included a 10,000-strong petition and support from the Queen Mother and the Prince of Wales, the decision was overturned by the States and the house re-furbished. In 1991 he and Marcus Binney and Advocate Christopher Scholefield formed Save Jersey's Heritage to fight for the preservation of the island's built heritage. Among their successful campaigns was the restoration of a row of 18th century cottages in the capital, St Helier.
Political career
He entered the States of Jersey in 1993 as a deputy for the parish of St Brelade on an environmental manifesto Notre Ile: A Charter for Change. Among his first speeches was an alternative 'green budget' proposed on Budget Day 1994. As vice-president of the Planning & Environment Committee for six years he helped introduce a new planning law and Island Plan. As president of the Jersey Transport Authority he helped draw up the Service Level Agreement governing the operation of the island's principal sea routes and represented the island in negotiations to protect Jersey's so-called 'lifeline' air routes. As president of the Home Affairs Committee he steered updated legislation through the States including a new terrorism law, a revised firearms law and a Police and Criminal Evidence law. In 2002 he failed to be re-elected in St Brelade, losing out to political newcomer Sarah Ferguson by 34 votes. In February 2003 he contested a by-election for Senator but lost out by 200 votes to Ted Vibert. In 2006 he was one of the founding members of the St Aubin Anti-Reclamation Group which opposes plans to reclaim land from the sea for a car park in his old parish of St Brelade.