I'm trying to give each person an area to build.

How do I let a player claim an area in to build in and not let anyone else build in it.

Hello Tiffany, Welcome to the Forums.

My first thought is to use a ‘Mutator Zone’ in the Advanced options you can specify what Team or Class it is active for. The zone also has a ‘Allow Building’ boolean. (So each building area would need the player to be assigned to a specific team or class)

Let us know if this setup works!