I'm going to tell my flat mate he can't have parties.
Do they make a lot of noise there?
Yes, it's quite disturbing to me.
I'm sorry that this is happening to you. It's polite to try and work out issues with roommates. You should try discussing this problem with him rather then forbid him to do something.
I'm telling him we can't use kitchen or living room for parties then.
That's fair enough. It's good to work on boundaries with roommates.