China's constricted real estate regulations are cheering mainland multimillionaires to grab luxury apartments in Hong Kong, although a number of Hong Kong shareholders are finding mainland property prices to be extra aggressive.

Statistics from Centaline Group demonstrate that mainland purchasers now account for almost 40% in new housing apartment transactions in Hong Kong. The number was approximately 20% before mid-March.

Cherrie Lai, Head of Residential Property at Hong Kong Land Holding Ltd, gave confirmation that there had been a recent gush in mainland purchasers, with a majority coming from Beijing, Shanghai and Hangzhou.

Mainland purchasers were amongst those, who grabbed no less than 90% of the units on the first day of sale at Serenade, a high-end project in Hong Kong, where apartments come at a cost of more than HK$70 million.

Edmund Ho, Managing Director of Real Estate Adviser DTZ North China said that quite a number of mainland purchasers have purchased luxury properties in Hong Kong, so as to move there, since the minimum need for migration to Hong Kong is HK$6.5 million.

Besides, the cutthroat lending rate and managed social care services in Hong Kong are pretty eye-catching for shareholders to grab them before others get hold of them.