My ideal barn would be as follows:
The FIRST barn, which would be fore mares/geldings and boarders, would have a dozen or more 24x24 stalls and one 30x30 for mother and foal with an outdoor paddock attached that I could close up if needbe. There will be a spiral staircase int he lounge, oh yes, I'm having a lounge, leading to the hayloft which will have an open space above each stall for tossing hay down into. I will have two wash-stalls with running hot and cold water. There will be three-horse wide cement walkways, a roomy nicely dirty padded indoor arena with GOOD lighting, doors that close up tightly with heating and air conditioning. A large tack room with at least five trailer-tie hitches to tacking up. The grooming shed will be built into the wall in there, with sections for each different brush, spray, hoof pick, and comb you could think of! Across the hall is the entrance to the indoor arena which will be no smaller than a football field. On the other side of the tack room it will lead outside. To the right are trails ranging from a short one mile trail to about 5 or more miles. If you go to the left there is the entrance to the basic outdoor arena, and next to that is the gate to the jumping arena.
My second barn will have one wash stall with hot and cold water, a smaller indoor arena and a similar tack room. This barn will be for the studs. The stalls will be 24x24. There will be one pasture that is about 100acres and a separate pasture for the stallions, this one will be about 60 acres and kept on the other side. Both pastures will be built out of wood reinforced with electric fence tape.
Overall, there will be about 400acres, with my house there too.