Pattinson was born in London. His mother, Clare, worked for a modelling agency, and his father, Richard, imported vintage cars from the U.S. Pattinson has two elder sisters, singer Lizzy Pattinson, and Victoria Pattinson. Growing up in the Barnes suburb of London, he attended Tower House School until he was 12, and then The Harrodian School. He became involved in amateur theatre at the Barnes Theatre Company. He auditioned and was cast in a small role in Guys and Dolls. He next auditioned for Thornton Wilder's Our Town and was cast as George Gibbs. He also played in Anything Goes and Macbeth. He caught the attention of an acting agent in a production of Tess of the d'Urbervilles and began looking for professional roles.
Pattinson began modelling when he was twelve years old, but the number of jobs began to decrease only four years later. In December 2008 he blamed the lack of work as a model on his masculine appearance: "When I first started I was quite tall and looked like a girl, so I got lots of jobs, because it was during that period where the androgynous look was cool. Then, I guess, I became too much of a guy, so I never got any more jobs. I had the most unsuccessful modelling career." Pattinson appeared in the advertising campaign for Hackett's autumn 2007 collection.
Pattinson began modelling when he was twelve years old, but the number of jobs began to decrease only four years later. In December 2008 he blamed the lack of work as a model on his masculine appearance: "When I first started I was quite tall and looked like a girl, so I got lots of jobs, because it was during that period where the androgynous look was cool. Then, I guess, I became too much of a guy, so I never got any more jobs. I had the most unsuccessful modelling career." Pattinson appeared in the advertising campaign for Hackett's autumn 2007 collection.