Average prime yields edged up to 5.78% in April, with retail property most under pressure. Retail warehouses were the main culprit of this last month but over the course of the correction which started a year ago, the yield increase for retail warehouses of 25bp is less than for shops or shopping centres (38bp and 39bp respectively). By contrast, business space sectors have been more stable, with industrial and distribution as well as London offices unchanged and national offices out by 25bp.