Perth Lord Mayor Lisa Scaffidi wants the City of Perth to sign-off on a ratepayer-funded trip worth $7500 to speak for just 30 minutes at a two-day conference at a 5-star Sydney hotel.

Council is expected to approve the trip on Tuesday night, as well as another ratepayer-funded stay at a swanky Bunker Bay resort in Eagle Bay for a private property council event.

WAtoday understands Ms Scaffidi has already accepted the invitation to the Sydney conference, which comes off the back of another trip in May for a World Energy Cities Partnership event in Houston, Texas.

Ms Scaffidi, under the cloud of a state government probe into her travel and acceptance of gifts from the mining and development sectors, continues to push for interstate and overseas trips despite the ongoing investigation and adverse findings from the Corruption and Crime Commission last October.