I always recommend having at least two coops. It's just practical in case you need to quarantine or separate birds. See, it's practical. Personally three coops is better than two. You might need to raise replacement birds someday and they need their own space. Or if your favorite hen goes broody, you might want to let her hatch some eggs for you. It will save electricity and be easier than that $300 incubator you're going to be eyeing. Again, purely practical.