Victoria Beckham has purchased a London supermarket to use as office space for her ever expanding fashion empire workforce.The fashion designer has purchased a Spar convenience store in Battersea, which is within walking distance of her offices in south west London, because she needs more space to house the ever expanding workforce of her fashion empire. A source said: "Victoria's range is going from strength to strength, and expanding at a phenomenal rate."Quite simply, she desperately needs more space."She's been looking at disused warehouses and shops for some time and heard the Spar newsagent around the corner had come on the market."Whilst it's not the most glamorous of operating spaces, it is functional and, once renovated, will provide a perfect base."Obviously she hasn't bought it as her inaugural flagship store but she will be using it primarily as extra work space for her rapidly growing team."While the brunette beauty - who has kids Brooklyn, 14, Romeo, 10, Cruz, eight, and 20-month-old Harper with soccer star husband David Beckham - is worth millions, the 38-year-old star is said to have negotiated a "great deal" on the building.The source added to the Daily Mirror newspaper: "Victoria is a canny businesswoman and has negotiated a great deal for herself."Despite her wealth, it's not the first time the Spice Girls star has managed to get money off at a supermarket.In 2011, she asked her bodyguard to get her a 25 per cent discount card from Ralph's in Los Angeles.Speaking at the time, a member of staff at the store explained: "We loved having Victoria in the store. All the staff were going crazy when she left. "She was really nice and very down to earth. We were shocked when she asked for a 25 per cent discount card but it's nice to see she's just as normal as everyone else, though. "We were all falling around with laughter as she could afford to buy everything in this shop in one fell swoop."