Net mortgage lending increased by £1.6 billion in September, a drop from the £2.9 billion recorded in September 2009, according to the British Bankers’ Association. Gross mortgage lending for September was also 10.8% down annually, totalling £8 billion. In August, gross mortgage lending totalled £8.1 billion. “The average value of house purchase approvals (£142,900) fell again in September but was …