Here's my mini-coop. I use this as my chick grower house, from 2 weeks to 8 weeks, and attach a 4x8 covered run so they can enjoy the great outdoors, and scratch, and dig, and grass and worms! I designed and built it myself, and I love being able to see my chicks through the plexiglass windows, and love having all kinds of access to them and to clean and change out water and feeder.
https://www.backyardchickens.com/web/viewblog.php?id=49101-the-birdello-grower-house
https://www.backyardchickens.com/web/viewblog.php?id=49101-the-birdello-grower-house