It is a deal worth $783 million.
The Scentre Group, which operates the Westfield brand in Australia and New Zealand, has sold off four Australian shopping centres.
Warrawong, Strathpine and Figtree have been purchased by Blackstone Real Estate Asia.
The final centre, North Rocks, has been sold to Challenger.
The sales come as Scentre Group reported half-year net profit of $1.083 billion.
Scentre Group CEO Peter Allen said the results placed the group in a strong position.
"In addition to having 14 of the top 20 shopping centres in Australia by annual sales, each of Bondi Junction and Westfield Sydney now generate annual sales in excess of $1.0 billion," he said.