Filming Location for Karate Kid

The Cobra Kai Dojo

5223 Lankershim Boulevard, North Hollywood, Los Angeles, California, United States of America

Fear does not exist in this dojo, does it? No, Sensei. Pain does not exist in this dojo, does it? No, Sensei. Defeat does not exist in this dojo, does it? No, Sensei.

This is where ruthless sensei John Kreese (Martin Kove) trains his students at the Cobra Kai Dojo. It's still set up as a functional dojo however it's closed at the moment. Although you can still see through the doors/windows.