Tiu Keng Leng (Chinese: 調景嶺), formerly[citation needed] Rennie's Mill, is an area of Hong Kong in the Sai Kung District adjacent to Tseung Kwan O (Junk Bay).

The area used to be a refugee village housing former Kuomintang officials and followers who escaped to Hong Kong from mainland China after the establishment of the People's Republic of China (PRC); however, the original Tiu Keng Leng village was cleared before Hong Kong's sovereignty transfer to the PRC in 1997, and nowadays Tiu Keng Leng is thoroughly redeveloped as part of the Tseung Kwan O New Town.

Because it was inauspicious, the name was later changed to similar-sounding 調景嶺 (Tiu King Leng / Jyutping: tiu4 ging2 leng5, which can be interpreted as "ridge of adjusting situation".)

[2] The Hong Kong Government's original intention was to settle these refugees temporarily before they would be repatriated to Taiwan by the Kuomintang or to mainland China by the Chinese Communists.

Thus, by the late-1950s, in correlation with the Cold War context in Asia at the time, Rennie's Mill gradually became a "Bastion Against Communism", with the flag of the Republic of China flying (earning it the sobriquet "Little Taiwan"), its own school system and practically off-limits to the Royal Hong Kong Police Force until 1962 when the Hong Kong Government decided to turn it into a resettlement estate due to its apprehension of the growing Kuomintang presence in the enclave.

Before the redevelopment and reclamation in the surrounding area, Tiu Keng Leng could be reached by the winding, hilly and narrow Po Lam Road South, which ran past numerous busy quarries.

Designed by French architects Coldefy & Associs, it resembles a piece of paper floating mid-air featuring a glazed box raised seven storeys above the ground on four lattice-steel towers that rest on a sloping, grass-covered podium.