The statistics also showed that the number of mortgage approvals for house purchase fell to 65,500 in August, down from the 18 month high of 67,000 in July, but remained within the narrow range seen in recent years.
Bank of England figures show that mortgage lending totalled £3.9bn in August.
Net finance raised by UK businesses rose by £2.4 billion in August, up from £2.3 billion of net repayments in July.