Lucinda Lambton was born in Newcastle upon Tyne, the eldest child of the Conservative defence minister Lord Lambton, then heir to the Lambton Castle estates. Her cousins included the racing driver Tim Birkin. The family lived in County Durham and London, where her sister Anne Lambton, later to become an actress, was born in 1954.
Lambton spent six years at Queen's Gate School, London, then went to a finishing school in Florence, but she ended her education without gaining any qualifications and became a professional photographer working for various newspapers including the Evening Standard. Her first assignment was working for historian Frank Atkinson who was collecting artefacts to form the basis of Beamish Museum. She is married to the journalist and professional bore Peregrine Worsthorne.
Lambton has researched, written and presented 55 films for the BBC and 25 films for ITV. They include On The Throne – The History of the Lavatory, The Great North Road, A Cabinet of Curiosities and The Other House of Windsor. Sublime Suburbia, her series of four films for ITV about the architectural and historic delights of London's suburbs, won the Regional Television award for the best documentary series of 2003. A further series of Sublime Suburbia in six parts, followed in 2004.
She has written and taken the photographs for 14 books including: Temples of Convenience, a history of the lavatory; Beastly Buildings, about architecture for animals; Vanishing Victoriana; An Album of Curious Houses and Lucinda Lambton's A-Z of Britain, a companion to the 26-part television series for the BBC.
Lambton has made presentations, often illustrated with her own slides, throughout the British Isles, and in America. She has been sponsored by the National Arts Collection Fund at the Royal Geographical Society, and provided several of the annual talks for the National Trust at The Royal Festival Hall. She has also travelled aboard the Queen Elizabeth 2 to speak for the National Trust and the Royal Oak Foundation and she has spoken at the Los Angeles County Museum of Art. She sometimes opens new buildings and museums, and hosts architectural and canine prize giving events.
She has made several series for BBC Radio 4, including Bringing the House Down, Elevations and Revelations, Pride of Place, an argument against modern architecture, Hidden Treasures and Listed, illuminating efforts of the Twentieth Century Society to save notable post-World War II buildings. She has been a castaway on Desert Island Discs.
Lambton is a regular contributor to newspapers and magazines, including The Daily Telegraph, The Times, Country Life and the Daily Mail. She is an Honorary Fellow of the Royal Institute of British Architects and an honorary member of the Chelsea Arts Club, as well as President of the Avoncroft Museum of Historic Buildings. She is a patron of the Cinema Theatre Association. She is an Honorary Vice President of The Crossness Engines Trust – the Crossness Sewage Works. She is president of the Garden History Society.