Sam Mason, a former banker at JPMorgan and Lehman Brothers, is to open his first specialty coffee store, The Assembly, near Leadenhall Market in London, early next year. Mason, who is originally from Melbourne, has secured a 650sq ft ground floor unit at 10-12 Creechurch Lane and plans to “high grade coffee with a variety of brew methods”. Selsian acted on behalf of The Assembly and negotiated an assignment of the existing lease due to expire in 2019 at a rent of £34,500 per annum.