The government has realised HK$4.21 billion in revenue from land-lease modifications and exchanges with developers between September and last month, compared with HK$2.04 billion in the same period a year earlier. There were 109 cases settled during the period when Home Ownership Scheme sales were suspended, involving an area of 99.9 hectares. Secretary for Housing, Planning and Lands Michael Suen Ming-yeung revealed the figures in response to a question from legislator Albert Chan Wai-yip in the Legislative Council yesterday. During the period, Sun Hung Kai Properties settled a basket of land premiums on seven projects for an aggregate HK$2.1 billion. Cheung Kong (Holdings) paid HK$943 million for its Tiger Balm residential redevelopment in Tai Hang. Mr Suen also said the Buildings Department had approved 97 property projects incorporating green building features since February last year. The aim of exempting green features such as balconies, sky gardens and wider corridors from gross floor area calculation was to provide incentive to developers to construct buildings with a better living environment. In his question, Mr Chan suggested that some developers boosted their profits from the sale of flats by inflating the flats' gross floor area with inclusion of the area of some green features. Mr Suen said the government was aware of this. Developers were required to set out clearly such inclusions in sales brochures and prospective buyers should be aware of them.