According to the general regulations, if a son is unmarried and has a minimum living allowance, he can apply for public rental housing in accordance with relevant policies. In the household registration book, the son and the elderly are under the same household registration, that is to say, they are immediate family members, which meets one of the conditions for applying for public rental housing. In addition, the son's subsistence allowance can also be used as one of the priority conditions for applying for public rental housing. However, the specific public rental housing policy may vary from region to region. For more detailed application conditions and procedures, I suggest you consult the local public rental housing management department or relevant government departments. They will be able to provide the most accurate information and help.
In general, if a son's mother owns his own house, his son may be identified as the "owner", which may have an impact on his application for public rental housing in some areas. Because public rental housing is usually provided for families with housing difficulties, if the son's mother owns her own house, even if the son meets other conditions, it may be considered as not meeting the standards of housing difficulties. However, the policy of public rental housing may be different in different regions, and the specific situation should be analyzed according to local policies. I suggest you consult the local public rental housing management department or relevant government departments to understand the specific provisions of local policies for homeowners to apply for public rental housing. They will be able to provide the most accurate information and help.
Legal basis:
Article 7 of the Measures for the Administration of Public Rental Housing
To apply for public rental housing, certain conditions must be met. If the children have no housing in the local area or the housing area is lower than the prescribed standard, their income and property are lower than the prescribed standard, or they have been employed stably in the local area for a prescribed number of years, then the children can apply for public rental housing. However, it should be noted that the specific conditions are determined by the housing security department of the municipality directly under the central government and the people's governments at the city and county levels according to the actual situation in the region, and implemented and announced to the public after being approved by the people's governments at the corresponding levels. Therefore, whether children can apply for public rental housing needs to be determined according to local specific regulations.