Mine are currently under the stairs (not as grim as it sounds, all light & open!) in the hallway, although they don't have as much space as I'd like (a C&C 2x3 with a 2x1 loft), they have a 2x7 playpen in the utility room during the day. But they hallway is quite a good spot for them because they can see me when I approach the fridge in the kitchen (and they let it be known that they can see me!!), they hear us around the house but it's not too noisy, no drafts etc. Just wondered where everyone else kept their pigs? And if they're outside, how often do you get to see them, especially when it's cold?