Some young Chinese people can earn higher incomes in second and third-tier cities and then buy cheaper properties in their smaller home towns, he said.
Volar Ye, 27, owns a property with his wife in Guangdong province, bought for them by his parents.
The couple are now trying to buy another flat.
"Properties are fixed assets, a more material investment than something like stocks," Ye said.
"Once middle-class young people save some money, they invest in real estate. There aren't that many other industries to choose from for investments or that they have confidence in."
Parents in mainland China also often provide down payments for their children buying property.
The HSBC survey found that 40 per cent of young Chinese home owners sought help when buying property.
The situation on the mainland contrasts with the problems young people face in Hong Kong trying to buy a home.
A survey published last year by the Hong Kong Federation of Youth Groups suggested many young people expected to work for up to 25 years before they could afford an apartment.
- South China Morning Post