The City of Mandurah is taking legal action against the owners of King Carnival in a bid to recover an estimated $200,000 in demolition costs.
King Carnival officially stopped trading back in February 2025 and its owners were required to clear the site when the lease ended.
However, the mini-golf course, fencing and structures still remain.
In the six months since King Carnival ceased operating, the buildings have been extensively vandalised and damaged.
The City have since installed a sign at the site acknowledging its unsightly appearance.
"We know this site isn't looking its best right now, and we share your desire to get it cleaned up," the sign read.
"The proprietors of King Carnival were required to clear this site when their lease ended. As this did not happen, the City has had to step in.
"Before starting work, we were required to follow a 60-day legal process before we could even source partners to clean up the site.
"We are now working, within the rules around procurement and safety, to get this space cleared and cleaned up as quickly as possible."

PIC: Friends of Hall Park Community Page/Facebook
The required works include removal and disposal of remaining structures, fencing and the mini-golf course and the removal of unsafe and non-native trees.
According to the City's August 26 council meeting agenda, the proposed demolition works will cost an estimated $200,000.
"The City will initiate legal proceedings against the former tenant to recover the associated costs," the agenda read.
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