Australian Unity Office Fund (ASX:AOF) said its responsible entity, Australian Unity Investment Real Estate (Auirel), is seeking confirmation from the purchaser of its Brisbane property that settlement of the sale will proceed as agreed in August, according to a Monday filing with the Australian bourse.

The purchaser has recently submitted to Auirel an indicative alternate proposal, the filing said.

Under the deal, 50% of the agreed AU$63.5 million sale price would be paid at settlement, with the remaining 50% deferred for up to two years, the filing added.

No confirmation has been received from the purchaser to date, the company said.

Shares of the company fell past 3% in recent Monday trade.