My wife and I are looking to buy a house soon, and to raise chickens and ducks.
So, looking over extant designs, I've been trying to design a permanent coop that I can fit in standing (I am 6'2") which can house a variable number of hens/ducks (and can hold more if we so choose).
This is the current crude design I have (amenities like water/feeder/roosting boxes are well beyond this design at the moment).
I have no decided on a width or length for this coop, yet. There would be six posts, each attached to concrete anchors. The back of the coop would be slightly lower, and the back itself will jut out a bit, so that when bedding is removed, the coop can be hosed out (as all the water will flow to the drain at the center-back). The coop floor and bottom quarter of the walls will be sealed with roofing sealant.
All lumber used in the construction will be pressure treated lumber. The floors will be built similarly (but worsely) than a deck would be - there would be crossbeams on both axes from each post for both the floor and the roof. Upon the floor, beams will be laid (possibly with support crossbeams if the length would cause it to dip too much) which are also treated wood. Atop that, I will likely nail in plywood or similar, and the walls will either be plywood or drywall. It will all be sealed/painted. The coop will be electrified (and to code) - ventilation will be provided by both exhaust fans and a large number of sealable vents (so active and passive ventilation will be available). The coop, as the image shown, will be split into two subcoops (though perhaps not at the center) - one half for hens, the other for ducks. Both will have their own runs. The coop will not be plumbed.
For geographic information - I live in Chicagoland. We get freezing winters (though usually not TOO cold - single digits are common, though we occasionally dip into the negative or double-digit negatives), and summers are usually 80's/90's, occasionally peaking in the 100's. We have predators - wild, feral, and outdoor cats, feral dogs, coyotes, raccoons, and supposedly minks though I've never seen them. We also have birds of prey (hawks are very common) so the run will be entirely enclosed.
Note, I am not an expert in any single thing discussed here, so I am sincerely looking for comments. My budget is somewhere between $1,000 and $2,000.