An Italian family, de Steffanos, is seeking a premium of £100,000 for the leasehold interest in the Alpha restaurant at the corner of Wicklow Street and Clarendon Street in Dublin 2. There is 1,292 sq ft on three floors which are rented at £12,500. The family has occupied the premises for 33 years. Douglas Newman Good is handling the assignment. The same agency is seeking £700,000 for a two-storey terraced office building, Mellifont House, at 24 Mellifont Avenue, Dun Laoghaire. It has 1,527 sq ft of space and planning for another 882 sq ft.