Concerns have been raised that an historic building in Tuen Mun said to have links to the founding father of modern China, Dr Sun Yat-sen, could be demolished.
Legislator Chu Hoi-dick said on Friday that residents of the Red House have been given eviction orders from the building's new owner, who bought the house and the surrounding land in November 2016.
Chu said he thought the new landlord plans to tear down the grade one historic building to make way for a new development.
The grade one status calls for every effort to be made to preserve the building. But it does not provide statutory protection under the law.
Chu said the Development Bureau should declare the mansion a proposed monument because of its significant historic, social and political value.
Many locals believe the two-storey house was where Chinese republican revolutionaries, led by Dr Sun, plotted to overthrow the Qing dynasty in the early 1900s.