Tung Chee-hwa tried to tackle the housing issue with the 85000 new housing per year. However, due to the Asia Financial Crisis and SARS, Hong Kong housing price was down about 70%. So many Hong Kongers were under water which forced the Hong Kong government to abandon the plan.What were the reasons the HK government never acted to solve the problem?
After Tung Chee-hwa was forced to step down early, Donald Tsang basically collaborated with the tycoons and ended almost all public housing projects. Hong Kong housing prices started to rise again in late 00s and early 10s. When Leung Chun-ying was elected, he tried to tame the price by proposaling many housing projects including the early version of Tomorrow Lantau but at that time the oppostions have grown very powerful during the Donald Tsang reign. The oppositions fought Leung Chun-ying in every steps and the useless pro-establishment legislators were no help either.
Not much was accomplish during Leung administration, the central government decided to elect Carrie Lam to make amends and hope to diffuse tensions. The oppositions took Carrie Lam's goodwill as a sign of weakness and decided to force more concessions from the central government. Then the extradition law came along and the riots and protests were turned to violence and then the crack down from the central government.
Of course, the tycoons were behind many of the protests including the 04 protests that forced Tung Chee-hwa to resign early. And all environmental groups have received fundings from these tycoons. But since these tycoons have always operated behind the scene, the central government didn't even take a hard position to rein them in.