The Department of Defence failed to get an acceptable offer for Clancy Barracks at Islandbridge, Dublin when tenders closed recently. Agents Hamilton Osborne King are now to offer the 13.65-acre barracks for sale by private treaty with a guide price of over £20 million. Though tenders were received, the highest price offered was considerably below expectations because of Dublin Corporation's plans to take at least 20 per cent of the residential units for social and affordable housing.