If advertising the whole place as one, with 6 bedrooms, I think there is increased risk that it will attract those looking for somewhere to party.
I would probably advertise them as separate entities, but be very clear in the ads on the fact that there is another listing on the property. Be sure to have photos to illustrate, so any booking guest is well aware - this could also limit the risk of getting negative reviews. Also remind about this when someone books, in case they missed it.
My listing is a tinyhouse in my garden, and it is only a few meters from my house, where we live. I explain this very clearly in my ad, and show photos, and no guest has ever complained or commented. Some have probably chosen not to book because the houses are so close, but that’s ok.
But of course, we are hosts and are careful not to disturb the guests or go to close. You can’t be sure how your guests will act.