My new hatch stay in brooders in the house for a couple of days till I'm sure they are eating and drinking well, then they go either to an old camping trailer or an old battery brooder under the elevated house, depending on the weather.
I put my brooder in the coop. I have electricity out there and I made the coop big enough so I could do that. I incubate in the house because that is the only place I can keep the temperatures stable enough, but no way would I try to raise them in the house.
Our garage has turned into our brooder house (quail, pheasants, chickens). Can't imagine keeping very many in the house as they stink even if you clean brooders out every day. In hot weather I open the garage windows when I leave for work and those that have heat lamps instead of brooders with thermostats are on timers so the lights go off once it heats up in the garage. I am able to run home at lunchtime and check on them when I think it is necessary. In time we hope to actually build a shed to use as a brooder house and have everything set up on thermostats. Have to save my pennies right now though in order to pay for it.