We still have some finishing touches - siding, winter run, windows, etc, but it is chicken-habitable and boy are the chickens happy!
As soon as they have settled-in, in a week or so, and know that it is home, we will start to let them out to free-range during the day.
He built a brooder area under one of the roost boards so that we do not have to raise chickens in the house again for such a long time (I am still finding feathers, chicken feed and shavings!).