Owning property in UE4

I have been looking around trying to find away to create like a deed system. Where players can own property that no one else can build on any suggestions Thanks

something like:
Player owns some space and builds a triggerbox there + saves itselfs reference into it.
So, only the player with that ref can build inside the triggerbox?

@Chaosgod_Espér can you please go in more details about this because i really need the help