State authorities have launched legal action against the owners of a property at Ponde with links to the Hells Angels and a 2017 murder.
SA Police found a car allegedly connected with the murder of Mark Boyce when they raided the property in September.
Because the car was buried beneath the sand, that meant the property itself was now an "instrument of the crime", SA Police said.
On Thursday, the Director of Public Prosecutions applied for a restraint to be placed on the property, meaning its owner - Disorganized Developments Pty Ltd, two of whose directors are members of the outlawed Hells Angels Motorcycle Club - would not be able to sell it or transfer its ownership.
The Supreme Court will hear the application on January 29.
Police declined to confirm whether they would apply for the property to be forfeited - or given up to authorities - if the restraint application were approved.
Three men fatally assaulted Mr Boyce at Elizabeth South on January 30, 2017 and escaped in the Toyota Echo allegedly found at Ponde.
But only one man - a Joshua Roy Grant, now serving a prison sentence - has yet been convicted of the crime.