I have two horses and a pony at home. They all live separately for one reason or another, but their fencelines are all shared so they are all social with each other, just can't kill each other. They each have their own run-in shed. I have a 3 stall shedrow--two stalls and a hay shed and a completely separate shed at one side for the pony, who's (very securely) fenced turnout wraps around the back of the shedrow.
Apart from the mini, they each have a small "holding pen" area (about 15ft deep by 30 ft wide) I front of their shed that opens at the side onto an individual larger field (about 3/4 acre), that wraps half-way on each side around the back of the pony's turnout, like a pair of L-shaped fields. That then opens onto yet another individual even larger field out the back.
(Bet that's as clear as mud...)
I only close the holding pen gates when the farrier or vet is due or when someone is in need of monitoring closely for one reason or another.
You have to walk through the holding pen area of the quietest of mine (elderly gent) to get to my hay shed. If necessary, he can be shut out of that area if we've got a hay delivery coming in or if someone is feeding and doesn't want to deal with him.
I've given up trying to deal with flaky local farmers delivering hay and now get mine from the Ag and feed merchant in town. They are reliable, the quality is good, and they deliver and stack on request. Horribly expensive, but only feeding two and a half, so I suck it up for the convenience.
The big boys share a water trough with a sinking heater in it for the winter. The pony has his own.
I feed hay in the mornings (elderly gent gets a bucket of senior feed as well) and pick out their sheds about 3 days a week, or more often if they've been standing in a lot because of the weather. In the week, they get fed around 8am. At the weekend, it's 9am.
In the evenings, they all get their hard feed and more hay. (In reality, it's a token offering to the mini and my fat appy, and the elderly gent gets a bucketful...)
Elderly gent is blanketed, at least at night, during the winter, so that has to be dealt with. The others, so far this year, not. Don't know if that will last through the dead of winter though! (Pony never wears a blanket. I did try...)
I fill water as necessary. I have one of those flat hoses that rolls up and goes in the house during the winter.
My feed and tack areas are purpose built in my garage.
My tiny arena is out at the end of my driveway next to the road, on the grounds that if I come off out there someone will find me fairly quickly!
I can ride out of my driveway onto tracks and trails on my own property and that of my friendly neighbors, and many miles of dirt roads.
I'm in the middle of nowhere so I have no great issue with where to dispose of poop.
I have a neighbor who loves to look after everyone for me if I am out of town. I pay her $20 a day to do so, which isn't a bad rate for 20 minutes am and pm... She can do so without touching a horse, if she chooses to ignore elderly gent, who likes an ear scratch at meal times
The biggest issue I have with my set up is unfortunately insurmountable at this point. I live on a mountain in serious snow country. I build everything close to the house (just the other side of the driveway which is great from a convenience factor) but it's at the bottom of a slope and in the spring the entire damned mountain melts off and runs through my barn area... we've managed to mitigate a lot of it but one stall and the bottom end of the pony pen still turn into a bog for about a month. They all have dry places to stand, however, and I think I suffer ore than they do from it.