WA Opposition leader resigns

"I spent the summer thinking about my own parliamentary career and what's ahead, not only for the next two years but what it would take to contest the March 2025 state election," she told reporters.

"I don't have any fuel left in the tank to go beyond that election."

Ms Davies said she had never wanted to be a career politician and 17 years in parliament would be long enough. 

Her resignation from the roles will be effective as of the next meeting of the parliamentary National Party.