An inquiry into the pitch to sell the Australian Turf Club's Rosehill Racecourse in Sydney's west and turn it into tens of thousands of homes will deliver its report on Friday.
But late on Wednesday the NSW premier responded to media reports the committee conducting the inquiry will call for him to be referred to the Independent Commission Against Corruption, describing them as allegations based on no fact or evidence.
"It's disgraceful to politicise the ICAC with unsubstantiated rumours," Mr Minns said.
"This is an old fashioned smear from a group of politicians opposed to changes at Rosehill," he added.
Chris Minns says corruption claims against him are a cynical attempt at political point scoring. (Bianca De Marchi/AAP PHOTOS)
The unsubstantiated allegations were a cynical attempt at political point scoring, Mr Minns said.
Independent MP Mark Latham, a member of the committee, and of the turf club, claimed via social media on Thursday there is evidence to justify the ICAC referral, based on a meeting the premier had in October 2023.
Mr Minns described the turf club's head of membership and corporate affairs Steve McMahon as a friend of more than 20 years in August, after Mr McMahon appeared at the committee inquiry earlier that month.
The committee was told Mr McMahon pitched the idea to the turf club's chairman Peter McGauran on October 26, 2023.
The premier had a "meet and greet" with the turf club four days later according to ministerial diaries.
Mr McMahon told the inquiry the meeting was to discuss the idea and the process for pitching it to the government, before investing member resources in a proposal.
"You want to make sure that (the government) are not going to be automatically opposed to such a thing," he said.
Mr Minns told budget estimates in August the proposal was announced before turf club members voted on the sale in the interest of transparency.