I have 2 Brittanys, 1 WSS and 1 Deerhound - they all live in the house. Dirt and fluff can be a problem but it is not impossible to keep the place reasonable.
My young Brittany is being trained to possibly Field Trial and the older one is a working dog - it makes no difference to them where they live, the training comes with consistency.
I currently also have my Failing Fosterer dog, Chico (about to be renamed - and I know what his name will be

) lives in the kennel. He seems uncomfortable in the house although he loves cuddles. I have a bench in the kennel arrangement where I can go cuddle him (and Chase who is also out there at the mo) or he will be free in the garden and conservatory.
All my dogs have settling places in the home, Brice likes either of the two rugs, Freddy likes a bench to snooze on or the top of the stairs, Chase and Mugi have crates in the living room.
I looked at using part of my garage as the sleeping part of my kennel but to be honest it becomes so hot and stuffy I decided against and the dog could become very isolated. My kennel means the boys in their have plenty to watch, either me in the garden, the other dogs or just the birds etc etc.