1. What is the nature of the land? According to what you said, it seems to be a small property right house, otherwise it would not be so cheap. Small property houses are developed on collective land. The advantage is that they are cheap, but the disadvantage is that they can't be listed (not to say that they can't be traded, but private transfer is also possible). Municipal facilities may be worse, such as no central heating. As for the developer, it is deceptive to get the real estate license in 2008.
2. Forward house or existing house? If it is an existing house or a quasi-existing house, you can consider buying it. If it's an auction house, be careful, or you won't find anyone without a lawsuit.
3. What's the quality of the house? This kind of house is generally repaired by small construction companies, and the insulation of the top floor may be poor. Most importantly, it may leak rain. Find a sensible person to take a look at it for you.
In fact, I don't know how many people live in small property houses in Jinan now. Does the government really dare to drive people away and tear down all the houses? Not necessarily. You can buy it if you think it over. If the house is cheap, you may increase some money in the future, and then you can sell it.