Property advisers Allsop has sold an office investment let to the Road Safety Authority at Ballina Retail Park. Conor Whelan said the two office units extending to 1,950sq m were sold to a private investor before auction for over €2.5 million. The yield will be 9.5 per cent. The buildings are rented at €243,000 per annum, and have 12 years to run on two co-terminus leases.