Clifford Chance, the 2,525-lawyer global legal giant whose latest financial figures are due next week, didn’t have to look far for its most recent M&A deal of note.

The Magic Circle firm’s London office is advising on one of the city’s largest commercial real estate deals so far this year by handling the proposed sale of a 32-story skyscraper at 10 Upper Bank Street that houses its own headquarters to a Chinese and Qatari consortium.