I am considering constructing a walk-in closet in what is currently hallway space in my home. One of the walls that would form the interior of the new closet currently holds a circuit breaker box. I don't want to have a circuit breaker in a closet where access could be blocked, so building this closet would require relocating this box. Are there any restrictions I should be aware of that would make moving a circuit breaker to another wall impractical?