A huge block of land in Joslin, worth more than $5 million, is on the market. Drug and Alcohol Services SA (DASSA), which has run treatment programs and stores clinical records at the 5600sq m site since 1968, is moving its operations to Stepney. Government agency Renewal SA has asked for expressions of interest to buy the block which spans 90-92 Fifth Ave and 80 Fourth Ave. Harcourts Magill sales consultant Alexander Zadow said such a large block in the up-market suburb could fetch more than $5 million. Mr Zadow said the site would be best suited for use as a retirement village.