Blackstone Real Estate Partners VIII and Brookdale Senior Living are jointly investing in a US retirement portfolio.

The joint venture, in which Blackstone’s latest opportunistic fund – for which the manager raised $15.8bn in October last year – has an 85% stake, will hold 64 assets leased to Brookdale.

US healthcare REIT HCP is selling the portfolio for $1.125bn, and the deal is expected to close early next year.

Mike McKee, chief executive at HCP, said the sale was part of β€œseveral important strategic priorities” for HCP, including reducing its Brookdale concentration and improving the lease coverage of its senior housing portfolio and diversifying operator relationships.

In addition to holding a 15% stake, Brookdale will manage the 5,927 units.

Andy Smith, Brookdale’s president and chief executive, said the deal should boost the company’s returns on invested capital and β€œsignificantly improve” cash flow, while reducing lease leverage.