Mark Dixie was jailed for a minimum of 34 years
The man jailed for life for the murder of teenage model Sally Anne Bowman is appealing against his conviction, his lawyer has said.
Pub chef Mark Dixie, 37, was jailed for a minimum term of 34 years in February for killing Ms Bowman, in Croydon, south London, in September 2005.
Her near-naked body was found in a pool of blood in the driveway of her home.
Julie Cooper, of law firm MacLaverty Cooper Atkins, confirmed Dixie was appealing against his conviction.
On the day of the murder, Dixie had spent a drug and drink-filled day celebrating his 35th birthday.
He attacked Bowman outside her home shortly after she was dropped off by her boyfriend, and at about 0430 GMT, neighbours heard Miss Bowman's screams.
Dixie stabbed her repeatedly before having sex with her body.
Miss Bowman's killer had a string of previous convictions for sex offences.
Detectives believe he may have targeted other women while living in Australia.
He lived there from 1993 to 1999 working as a cook in bars and restaurants.
He was deported to England from Western Australia after jumping out of a bush naked and making lewd suggestions to a woman jogger.