A batch of 18 luxury government flats came on to the market yesterday in a sell-off plan officials hope will prevent property speculation. Eleven flats went for sale in Island South's Unicorn Gardens, four in Wilshire Towers, Braemar Hill, and three in Elm Tree Towers, Jardine's Lookout. But Democrat housing spokesman Lee Wing-tat warned it was just a drop in the ocean and urged immediate action by the incoming SAR government. Apartments are up for tender until noon on July 2, with reserve prices ranging from $12 million to $19 million. Viewing begins on Tuesday. The former civil servants' quarters, sized from 1,714 square feet to 2,190 sq ft, become the first of 400 apartments going to the highest bidder in four sales this financial year. A clause aimed at preventing speculation gives the Government the right to buy back flats at the sale price plus a maximum of 10 per cent if the buyer sells within two years. Mr Lee said it was right for the Government to sell off buildings, but warned the Chief Executive-designate would have to come up with a permanent solution to the housing problem. 'Tung Chee-hwa needs to take the position up after July 1 on how to increase the amount of land and flats available. 'It's like putting water on a very hot fire, it doesn't make a tremendous impact on the market.' Among the flats being sold this year are three blocks with a total of 123 apartments. They are expected to be available for redevelopment from December but no details will be given until nearer their sale date. Agency administrator Albert Lai Kwok-ying said only 1,250 large flats came on to the market each year. 'A few hundred flats will make their presence felt in light of the annual production of large flats,' he said. 'Putting these apartments on the market should have a stabilising effect on property prices.'