If you only want one Sim to move out (like a teenager heading to university), use the Split from Household option in the "Manage Households" menu rather than moving the whole family.
Click the icon to select a new home. Purchasing Options sims 4 buy new house
Are you looking to move a out on their own, or are you trying to buy a business property like a retail store? How to Buy Houses in The Sims 4 If you only want one Sim to move
Check out this walkthrough on how to manage your household and move into a new lot: How to Buy Houses in The Sims 4 Quick Tips YouTube• Apr 12, 2024 sims 4 buy new house