The family of a government adviser on Lantau development owns a lot of land on the island, according to his declaration of interests.
In addition, three other non-official members of the government-appointed Lantau development advisory committee have properties on the island, as well as planning director Ling Kar-kan.
The records also show that nine of the 19 non-official members work for or hold shares in companies that have businesses on the island.
But Randy Yu Hon-kwan, a Heung Yee Kuk councillor and a son-in-law of powerful New Territories kingpin Lau Wong-fat, stands out with his family's extensive land ownership.
Yu and his mother have three homes in Tai O, while his in-laws possess 29 plots of land in Tung Chung and four in Yi O.
Yu is also general manager of Sino Land.
The interests of the non-official members, together with those of Ling and other officials sitting on the committee, were released yesterday.
The body was formed four months ago to advise the administration on development plans for Lantau. Its first meeting took place more than two months ago.
Others who are linked to the island via company interests include Shui On Land development consultant and former legislator Lau Ping-cheung and John Swire & Sons director Ivan Chu Kwok-leung.
Andrew Lam Siu-lo, a top antiquities adviser to the government, reported holding stakes of more than 1 per cent in six firms having businesses on Lantau and its vicinity.
But company registry data records Lam as a director rather than a shareholder of three of the firms.
Lam also co-owns two flats in Tung Chung.