A database of Victorians’ personal property details will be sold to the private sector as the Andrews government moves to relinquish key parts of the land titles registry in a move that could be worth up to $2 billion.

Details of property titles, registrations and discharges of mortgages will be available to the buyer.

The state government will soon call for expressions of interest to buy lucrative parts of Land Use Victoria, which generates $300 million income for the state annually, the public sector union says.

The private operator will be licenced to sell the data to third parties, but the government said that arrangement was already in place at Land Use Victoria.

The New South Wales government last year accepted a bid for $2.6 billion for its land titles registry. But the British government abandoned a move to sell off its registry in 2016 amid a public outcry over privacy issues.