How many years is the property right of Bai Tong Xinyuan Qilin Villa?

I was also struggling with this problem yesterday. I always thought this house was 70 years old. It was not until yesterday that my colleague talked about this Belden Xinyuan Qilin Villa that I realized that the house was a permanent property right, and it was still in Jeju Island, a tourist resort. It's a pity that he is only a small white-collar worker at present.