They do not charge you.
Number of crew is restricted within 5, large film crews are not allowed.
Normally 3-4 days to get their permit.
Imperial Palace Outer Garden

Tokyo based fixer for film shooting and production service in Japan
Japan as your location
They do not charge you.
Number of crew is restricted within 5, large film crews are not allowed.
Normally 3-4 days to get their permit.