Finally some actual information about Heirs filming in LA. This address is the Millennium Biltmore Hotel, though who knows if it is indoors or outdoors filming, and you may want to expect standing outside and not seeing anything. >.>
I would hazard to guess this is going to concern at least either Kim Woo Bin or Kim Ji Won, (or both or more of the cast), since it is a hotel, and they’re both connected to hotels.
(PS: If I find any more Heirs filming permit information, I will post it. :) But this was all that was listed that I found so far. *off to look for more*).