On the private contract of buying and selling the attic without property rights

First of all, the private transfer of your attic is not protected by law. Can only say that the transfer of the right to use. Because there is no real estate license in the attic, it belongs to the ancillary facilities of its own house and cannot be sold separately. The law does not recognize it.

1. The house has no real estate license, no land certificate and no land use right at all. So the transfer of land use right is invalid.

As for heating, running water, electricity and natural gas, these supporting facilities companies don't allow you to set up pipes to the attic without permission, especially heating and natural gas. There is an interface fee for heating. If it is found, you have to pay the interface fee. Natural gas is dangerous and can be connected privately. Except for problems, natural gas companies can be exempted from liability.

3. Who dares to buy a house like yours if you don't know the relationship?

A legal contract is valid only if it complies with laws and regulations. How can contracts that do not comply with laws and regulations be protected by law?