Personally, I would get the coop & run set up first, then get young chicks and brood them in the coop.New to chicks and reading and researching all I can get my hands on before I actually bringhome some chicks. Purchased the coop and run yesterday but it will be a few weeks before we level the ground, assemble the equipment, and predator proof the area. My dilemma is whether I should get very young chicks (to be kept in the house for a few weeks until fully-feathered), already full-feathered chicks but still less than 6 months old, or adult hens.
My original plan was the fully-feathered chicks but I'm also very excited at the prospect of having very young chicks in the house for a few weeks while we set up the perfect outdoor habitat. I have two spare bedrooms I could keep them in and I have several dog playpens and gates and barriers from all my dog rescue.
Chicks in the house will get dust everywhere, and no amount of dog playpens, gates, and barriers will stop it. A closed door will help with the dust, but that separates the chicks from you & the dogs almost as much as putting the chicks outside (and the room still gets dusty.)