There was widespread relief last year when Chief Executive Donald Tsang Yam-kuen unveiled initiatives to preserve Government Hill, the centre of administration since early colonial times.
Yesterday the government revealed a plan to sell a third of the site to a developer for a 32-storey office tower and underground mall. There are now fears that the landscape could be spoiled and that a planned public garden might end up as the new property's backyard.
The west wing of government headquarters at the junction of Queen's Road Central and Ice House Street will be put up for sale after civil servants move to the new headquarters at Tamar at the end of next year.
Acting permanent secretary for development Gracie Foo Siu-wai said the wing would be demolished to make way for the 150-metre office tower and podium, while a mall and car park would be excavated beneath Lower Albert Road.
'This is a response to the market's need for quality office buildings.
'The west wing has low architectural and heritage value and we should take the opportunity for redevelopment,' Foo said, citing a government-commissioned study on the heritage value of the headquarters complex.