A wild idea has been floating around architectural circles lately: building a new central library on the Central Market site. 'Central cannot afford a denser environment,' veteran architect Rocco Yim Sen-kee said, citing the benefits of moving the existing central library from Causeway Bay to Central. 'The green ratio of Victoria Park is low,' he said. 'It is supposedly our biggest park. But it's actually a sports field more than a park.' If the park's sports facilities, such as tennis courts and the swimming pool, were moved to the current library site, more greenery could be planted, he said. Jim Chi-yung, a chair professor with the geography department at the University of Hong Kong, agreed that only half of Victoria Park was covered in greenery. But the library idea seemed unlikely to happen, Mr Yim said. The Central Market site is designated for commercial use and was put on the land sales list in August. The government could gain more than HK$10 billion through a land auction. It would also be wasteful to tear down the eight-year-old Central Library, he said. But it was for public discussion to decide whether the library should make way for a better urban plan.