THE tallest building in Asia, talked about for decades but still just an architect's dream, is set to grow another two storeys, at least on paper, according to new plans filed by Hopewell Holdings. The Mega Tower Hotel was originally designed to be 60 storeys. Hopewell has now received planning approval that will see the $3.5 billion project soar to 93 storeys, up from 91, although the number of rooms has been scaled down from 2,400 to 2,197. However, residents near the Wan Chai site have criticised the secrecy they say surrounds details of the scheme and fear the new plans include subsequent development of nearby sites that include their homes. ''We have been living without answers for so long,'' said Leung Chi-ping, an elderly resident in a nearby building also owned by Hopewell. ''I cannot live like this, unsure of my status, not knowing whether I'll be kicked out in a month.'' The change that most irks residents is the one returning several parcels from government to Hopewell hands. The property has been listed as open space, meaning no development will be allowed, but residents worry that Hopewell has other uses in mind. In return for permission to plan the development of a 10,315-square-metre site in one go as a ''Comprehensive Redevelopment Area'', Hopewell pledged to give the Government many adjacent plots. These were to be turned into park or open space for the densely-developed Wan Chai district. The surrounding plots were offered in exchange for planning approval of a project that otherwise would have exceeded allowable land use density. However, changes in land use requirements over the years meant Hopewell was no longer obliged to give up quite as much land. In January, the company petitioned the Planning Committee for more than a dozen changes in the development scheme, including the exclusion of three parcels from the areas to be surrendered. The application, which was approved, provoked an alarming reaction from Mrs Leung and the 21 families living at 214-224 Queen's Road East. While all had been aware for years that their flats would be demolished according to the conditions of the scheme, Mrs Leung said they preferred to leave their fate in government hands. ''Then we will be properly compensated with new housing,'' she said. ''But we have no idea what Hopewell wants to do with our homes.'' Legislative Council representative Christine Loh Kung-wai, who chaired a meeting to discuss the issue last week, called for a complete overhaul of the public opinion process taken by Government. ''We don't need the old paternalism of the old days, of the colonial civil service system,'' she said. The lack of information has created anxiety in the neighbourhood. ''People are worried that Hopewell will try to re-zone the land again and develop it,'' said Evans Ward, a legislative assistant to Ms Loh. Hopewell Holdings bought the building in 1984 for $81.74 million, then a rather lavish sum that worked out at $16,543 per square foot. Company chairman Gordon Wu Ying-sheung, who grew up in Wan Chai, had been buying property in the area for a decade. Joachim Burger, managing director of Hopewell's hotel division, said construction would take at least three years. He said the group hoped to start building the hotel by the end of the year and open for business in 1996.