A subsidiary of Brookfield Property Partners has formed a joint venture with Qatar Investment Authority (QIA) in the development of Manhattan West. Upon completion, the estimated value of the five-building, 7-million-square-foot, mixed-use complex, is anticipated to reach $8.6 billion.

As part of the deal, Brookfield will sell a 44 percent interest in the development project, which is bordered by 31st and 33rd streets and Ninth and Tenth avenues.

“Brookfield has enjoyed a long-standing, successful relationship with QIA, and we are thrilled that they share our vision for this transformative project,” Bruce Flatt, CEO of Brookfield Asset Management Inc., said in a statement.