The series, which stars Elisabeth Sladen as Sarah Jane Smith, one of Doctor Who’s most famous and loved companions, has been a ratings hit for CBBC.
A fourth series, set to air this autumn, sees Tommy Knight, Daniel Anthony and Anjli Mohindra return as popular regulars Luke, Clyde and Rani and features the show’s first visit to an alien world plus scares and fun with “enemies old and new”.
The fifth series is set to go into production in 2011 for transmission later next year.
Behind camera series three producer Nikki Wilson will join show creator Russell T Davies as executive producer with new producer Brian Minchin joining the team.
CBBC Controller Damian Kavanagh said the show has been “a huge ratings and critical success on CBBC and we hope our viewers are going to be hooked on Sarah Jane’s action-packed adventures for some time to come.”
BBC Wales Head of English Language Programmes, Clare Hudson, says: “The idea for The Sarah Jane Adventures sprang from the success of Doctor Who and it has since rocketed in popularity in its own right, thanks to the vision, talent and hard work of the show’s brilliant cast and crew.”