Inside Shenzhen, I'm currently renting an 80 square meter apartment. It cost my landlord 4 million yuan and he and his wife made a 50% down payment. I understand in Beijing it's much, much more expensive. The economic divide in this country is insane.
Not that buying property may be easy for a migrant worker, but for most cities an 80 square meter property should be enough. Outside of Beijing/Shanghai/Shenzhen that's about a million Yuan.
Just wanted to add some clarification / quantification for a casual reader.