My plot is less than a hectare - which is plenty for growing vegetables and such. At the moment almost all of my yard is open meadow, just a few trees growing here and there, and now when I don't have grazing animals I've been dreaming about planting fruit-bearing trees. Oh well - but if I'd go back to having horses at home, that would require me owning more land. The minimum is two horses, for they are herd animals and definitely need company. Also, I'd estimate one hectare per horse is enough for summer pasture, assuming that all the hay for winter can be bought. So, at least two hectares of wide open meadow as a pasture. Ideally a bit more, so that the surface area could be circulated, allowing some areas to re-grow instead of everything being constantly grazed by horses. (And, if going to more serious self-sufficiency, then I'd need at least one more hectare just to grow hay for the winter fodder. Again, maybe more, depending on if the hay would grow without additional fertilizers - organic farming tends to take more land, as you can't simply reap maximum harvests all the time, compensating that by industrial fertilizers.)

So, my small plot isn't quite suited for having horses. Maybe I could sustain a small flock of sheep, but at the moment I feel that it is also good for my well-being to have minimum amount of daily responsibilities. Also, one of my acquaintances runs a little non-commercial sheep operation, and they asked me to help with the slaughtering. So, for now it seems that I'll visit them one or two times a year, do some not-so-cheerful job, and return home with some home-grown organic meat, which means that I very seldom need to buy any meat products from the super market. And, based on my previous experience, growing vegetables and having sheep on the same plot of land would be easier if there is enough space to keep the animals well separated from the garden, as they are very eager to get to eat all the tasty stuff humans try to grow. which, I think, is fair enough, if the humans intend to eat some of the sheep, and the sheep keep on eating some of the stuff humans wished to have for themselves =)

Oh, okay - so, as I'm not planning to have sheep nor horses any year soon, then I'm perfectly fine with the amount of land I have. Especially if I can harvest firewood from neighbouring forests. Otherwise it would help to have double the amount of land, the other half just to grow alder and birch for firewood.