Japan's property market is luring more attention from Asian investors keen to reap capital gains or achieve high yields not available at home with a long-term view of holding their assets.

Money is flowing mostly from Taiwan, Hong Kong, mainland China and Singapore, with the city-state also acting as an outbound capital gateway for Southeast Asian countries such as Thailand.

"The size of investment from Hong Kong ranges from ¥2 billion ($19 million) to ¥10 billion per deal," Toru Fujita, an executive officer of Nomura Real Estate Development Co., told Kyodo News in a recent interview.