At the address you mentioned, that was Medic 151 and Engine 39 going to a medical assist for PD (a female with a sore throat from being choked) at 6037 Castle Gate Drive West in the Silver Heights area of north Castle Rock at 8:20pm.
I heard something about a six story structure fire too, but not much of it, just a unit arriving and investigating. Don't know where that was. It could have been anywhere, I have lots of stuff programmed in my scanners and was working on something else and didn't see it.