Legal analysis: no, the school district of the child should be the same as the address on the parent's real estate license. If the child's household registration is with his parents, and there is no real estate under their parents' names, even if grandpa does, the child can't go to school in grandpa's real estate area.

Legal basis: Article 12 of the Compulsory Education Law of People's Republic of China (PRC) exempts school-age children and adolescents from the entrance examination. Local people's governments at all levels shall ensure that school-age children and adolescents are enrolled in the nearest place where they are registered. School-age children and adolescents whose parents or other legal guardians work or live in non-registered places receive compulsory education where their parents or other legal guardians work or live, and the local people's government shall provide them with equal conditions for receiving compulsory education. Specific measures shall be formulated by provinces, autonomous regions and municipalities directly under the Central Government. The education administrative department of the people's government at the county level shall ensure that the children of military personnel within their respective administrative areas receive compulsory education.