The Mailbox, the retail and restaurant complex in Birmingham, could be put up for sale after its owners held crunch talks with their lenders. Mark Billingham and Alan Chatham, owners of the £100m development, are said to be in discussions with the Lloyds Banking Group and the Royal Bank of Scotland over the future of the site. It follows last month’s collapse of the Birmingham Development Company, also owned by the two entrepreneurs, which was behind the Cube scheme that was under construction next door. D&D London was one operator intending on opening at the Cube and the Mailbox is host to a clutch of restaurants including Strada, Zizzi, Café Rouge, Gourmet Burger Kitchen, Nando’s and Ha Ha Bar & Grill. Chatham and Billingham bought the 850,000 sq ft former Royal Mail sorting office for £4m in April 1998 and developed the Mailbox scheme. It agreed a refinancing of the asset with Lloyds and RBS in 2007. It is thought Lloyds appointed Savills to compile a report on the asset last month and that the company suggested that the Mailbox should be brought to the market later in the year. PricewaterhouseCoopers’ Mark Batten, Matthew Hammond and Peter Spratt have been appointed as administrators of the Cube site.