Balfour Beatty has sold its 50% interest in the Royal Hospital of Edinburgh project.
The infrastructure company has traded its stake to fund manager Equitix for £72m.
The consideration is to be paid in cash in full on completion of the deal, expected to occur by mid-June, and will be reserved within the business.
Leo Quinn, Balfour Beatty Group Chief Executive, said: “This transaction again underlines the quality of the investments portfolio and its ability to generate value for shareholders. It also demonstrates our commitment to maintaining a strong balance sheet through self-help as we deliver the first phase of the Build to Last transformation programme.”