Sun Hung Kai Properties the world’s largest developer by market value, raised the price of two penthouses in Hong Kong by 50% to a record HK$75,000 ($9,700) a square foot as demand surges for luxury apartments.

The units will be offered for HK$300m ($39m) each, said Victor Lui, executive director of the company’s real estate broker. The apartments each have 4,000 square-feet (372 square meters) on three floors, an outdoor garden and a swimming pool.