Can the ordinary residence in the fantasy westward journey be upgraded to a mansion?

You can't give it up! You should take the original house or mansion to the building, tell him "I want to sell the house", and then get the deed. You can set up a stall, you can be a chamber of commerce, but you can't trade. You can buy a mansion or build it yourself! In addition, the maximum space of famous houses is 14, with 24 buildings and 32 buildings.