Childhood and education 
Bayley spent his childhood years in Liverpool, attending Booker Avenue County Primary School and Quarry Bank High school (now known as Calderstones School). Growing up in Liverpool, Bayley was inspired by the city's architecture and its built environment.
He has worked as a museum curator. In the 1970s he was a lecturer in the history of art at the University of Kent, but first became prominent in the 1980s as an authority on style and design when Sir Terence Conran chose him to head up the Boilerhouse Project, at the Victoria and Albert Museum, the V&A, in London. This was Britain's first permanent exhibition of design and it was host to more than 20 exhibitions in five years including Ford Motor Co, Sony, Issey Miyake, Coca Cola and Taste. He then became Chief Executive of the Design Museum in London which grew out of the Boilerhouse Project.
In 1989 he was made a Chevalier de L'Ordre des Arts et des Lettres, France's top artistic honour, by the French Minister of Culture and in 1995 he was Periodical Publishers' Association Columnist of the Year.
He was appointed as the creative director of the exhibition at the Millennium Dome in Greenwich. After a series of disputes he resigned in 1998 citing ministerial interference. On his resignation he said of the dome that "it could turn out to be crap", and accused government minister Peter Mandelson of "running the project like a dictator". Mandelson said that "he had not been a dictator but had been decisive and had got a grip on a project that was suffering from drift". Mandelson also said that Mr Bayley's other remarks did not merit a response. Chief Executive of the Dome Project, Jennie Page, gave evidence to a House of Commons Select Committee which included the issue of his resignation.
In 2007, Bayley became The Observer's architecture and design correspondent. In his column of 22 March 2009, he claimed that: "Botticceli's model for The Birth of Venus was a common Florentine hooker called Simonetta Vespucci, painted nude to titillate his client". He was arguing against the motion that: "Britain has become indifferent to beauty" proposed by Roger Scruton and David Starkey, who held an image of The Birth of Venus next to an image of the British supermodel Kate Moss, in order to demonstrate how "cruddy" British culture is.
In July 2008, Bayley, described as a 'design guru', became the first of three non-executive directors to join the management board of Sidhu & Simon Communications, a public relations and sponsorship agency.
He writes for several newspapers and is a contributing editor of GQ. He is also a regular columnist in British CAR Magazine where he offers a critique of contemporary motoring design from a philosophical perspective. He has also appeared on television series such as Have I Got News For You and Grumpy Old Men.
He has also written several books, including A Dictionary of Idiocy and General Knowledge, ISBN 1-86154-068-X. His latest book, Life's A Pitch, ISBN 0-593-05643-4, co-authored with Roger Mavity, was published in March 2007.
Personal life 
He lives in his south-west London house with his wife, Flo, and their two children, Bruno and Coco. He has lived there for 25 years and says that the house still isn't finished: "doing up a home is like food and sex: it should never be rushed" and that the sole purpose of the garden is as "a place to sit with a book and a glass of wine".
- "V&A profile". Retrieved 2008-08-02.
- "Life's a Pitch website including pictures of the authors". Retrieved 2008-08-02.
- "Mandelson rejects dictator comment - BBC News, 11 January 1998". Retrieved 2008-08-03.
- "Jennie Page evidence to the House of Commons Select Committee includes reference to Bayley's resignation". Retrieved 2008-08-03.
- "Stephen Bayley's column in The Observer from February 2007". The Guardian (London). 2007-10-11. Retrieved 2008-08-03.
- "Has Britain become indifferent to beauty? National Trust Quality of Life Debate - retrieved 22 March 2009
- "Joins public relations & sponsorship agency". Retrieved 2008-08-03.
- Philby, Charlotte (2008-08-06). "A work in progress: At home with design expert Stephen Bayley, The Independent, 6 August 2008". London. Retrieved 2008-08-07.
- "Hotel buildings to be arts canvas - BBC News, 1 May 2008". 2008-05-01. Retrieved 2008-08-07.
- Stephen Bayley at the Internet Movie Database
- Flo Bayley's Studio 176 website
- Centre for School Design Launch: Stephen Bayley, Talk(video)