The council will seek three councillors for the north ward, one for the north-west ward and one for the south ward.
Nominations will open in August for the postal election and chief executive Richard Gorbunow said the council was keen to ‘attract a diverse range of candidates to value-add to our dynamic council’.
The council currently has just six councillors after a third of the council quit.
Crs Merri Harris, Christine Randall and Michael Ricketts left in March and were not replaced.
In 2011, all Serpentine-Jarrahdale councillor positions were up for election after a review of ward boundaries.
Nine positions, some for two-year terms and others for four-year terms, were contested after the council agreed to reduce the number of councillors from 10.
The shire is looking to return to nine councillors and the positions held by Crs Barry Urban and David Atwell are up for re-election.
Last week, both councillors confirmed they would stand for election on October 19.