Béthanie Sanatorium, complete with a neo-gothic chapel was built on a hilltop in Pokfulam, Hong Kong surrounded by dairy pastures by the Missions Etrangères de Paris (the French Mission). Completed in 1875, Béthanie operated until 1974 as a place for priest and missionaries from all over Asia to recover from tropical diseases before returning to their missions.
More photos http://www.emmanuel.org.hk/html/pokfulam-churches.html
Re: The Bathanie
According to the link it was built between 1873 and 1875. So I guess it would be safe to say it was completed in 1875.