OK, in no particular order.
My climate is nothing like yours, nor is my flock. Both much larger, and contains ducks, which have different needs than chickens.
I built my coops - cheaper than ordering in sizes suitable for me, gave me more control over the final product. learned a lot (made some mistakes) making the first, which I've largely corrected with the second, where I could. Pressure treated 4x4s, Hardie board walls (essentially concrete and fiberglass, no worries for rot, termites, or much else), and metal roof.
I use straw in the nesting boxes. I go thru one compressed bale every 6 months or so.
I use deep bedding in my house, comprised of spent straw from the nesting boxes plus about a cu yd of leaf litter from my surrounding acres - mostly oak, hickory, holly, and pine leaves (in that order) plus small sticks. When it gets loaded up, about quarterly, I rake it into the run, where it joins more leaf litter, clippings from the pasture, and anything of the kitchen scraps the birds missed (haahahhaaha, None!) in a deep litter system, where it cold composts on my sandy-caly and clay-ey sand soils into real good dirt.
The first coop is raised a bit more than 3' off the ground - high enough to roll in a wheelbarrow for cleaning, the ducks sleep (and nest) underneath. Its a right ^&%*^*&$ when I have to crawl under to retrieve duck eggs. External nest box, closer to 42" off the ground, which I can access w/o entering the run. Side opening, very nice. 10/10 would do again. That run is probably 900-1000 sq ft, but its not rectangular, I was pretty bad stretching fencing and installing poles.
Second coop goes to the ground, and will be shared with a pair of goats,
measures 10x16, needs paint and a metal roof, if it will ever stop raining. The run is currently green (its just fenced pasture) with a mix of forbs, but will quickly turn into a brown, vegatative- free zone once I've moved birds and goats into it, they destroy everything. Again, I'll be doing deep litter, this time throughout. My older birds are going there, the younger and better layers will stay in coop number one. Going to throw up some quick nest boxes, maybe plastic milk crates, and will stick with hay in those - its readily available and cheap. Its run surrounds the first on two sides, probably closer to 3,000 sq ft, the third side of the first run is the back of my barn.
No recommends on automatic pop doors, my birds, except in the absolute worst weather (TorCon3 or hurricane approach) sleep with the house open and full access to the fenced and gated run. I let them free range most of five acres during the day, that's protected by an electric fence - a deterrent but not critter proof.
I don't use poop boards, I don't use lime, I don't use PDZ. They do their business on the deep bedding, which eventually joins the deep litter. Roosting bars are a mix of 2x3s and 2x4s, some flats, some edge up. They go where they are comfortable, based on size. The smallest like the edges. 2x3s are popular with some, my CornishX and brahma like the flats of the 2x4s.
I feed them in the run, what they miss, spill, or throw (ducks are MESSY eaters) joins the composting mass, which the chickens help turn as they scratch for lost bits. I move where I feed them periodically to help ensure some uniformity/consistency in what's being turned where. Since its deep litter, it just cold composts, I never need to clean it.
They have multiple water sources from two rainwater catches. Neither is technically in the house, but one is a long pvc gutter mounted to the outside of the house, which they can access from under the house in bad weather. Its sheltered on three sides against seasonally prevailing winds. Another water source is an "automatic dog watering bowl", while the rest are little red chicken cups attached to 1/2" pvc - the ducks can't use those. Finally, I have a shallow depression in my run where I channel rain water before diverting it out to a pond I'm busy lining. Because it rains so frequently most of the year, it usually has some water in it. NOT attractive water, but the ducks seem to prefer it most days.
I have three J-style PVC feeders, I don't use them anymore unless I expect to be gone for an extended period - they tend to clump up in high humidity environments, which is basically my whole state, and they require pellets to work effectively, which is a more expensive feed for me. Most often, I pile wet wash or fermented feed (depending on how long its been wet) into more PVC gutters raised a bit off the ground (think feed trough). The ends are not capped, rain cleans them pretty thoroughly with great frequency.
The birds dig dust baths anywhere its very dry, my native sands are good for it. Their favored place is the top of the hill, under the back of my RV. They have a couple under the raised hen house, however, which tend to migrate thru the season.
Birds get kitchen scraps, but no potato peels, sweet potato peels, or fresh (uncooked) green beans. They do get onion and its papers, which probably isn't good for them, but they ignore it, and it disappears into the litter pretty quick.
and I think that covers it. Hope its at least a little useful.
