I own a small house in the countryside in addition to my apartment in the city. Can I give it to my minor grandchild?

Yes. In order for the donation to be validly filed, in addition to the fact that it must be established by a notary, it is essential that the beneficiary accepts the latter (art. 932 C. civ.). When the beneficiary is an unemancipated minor, accepting a donation unencumbered by charges, which means without the beneficiary having to fulfill any obligation in return, constitutes as an act of administration and may be carried out by its legal representatives.