Growth in lending for housing continues to fade gradually, with more of the weakness evident now in lending for residential property investment, financial aggregates for March 2011, published on Friday by the Reserve Bank of Australia, show.Business lending, however, increased for the third month in a row in March - the first time the RBA has reported growth in this measure for three successive months since the financial crisis hit, in the third quarter of 2008.The RBA put growth in credit for housing at 0.4 per cent for the month and at 6.6 per cent for the year to March 2011. This is the lowest level of growth, on a 12-month basis, in housing credit since this series began in the late 1970s.The chief weakness in growth in demand for new home loans was for investment loans - at 0.2 per cent for the month. Growth in demand by business for credit over the month was 1.0 per cent, though the level of credit for business is still slightly less than a year ago. This measure may turn positive on a 12-month basis in the next couple of months.