Just thinking aloud here really and hoping for some thoughts back.
Currently have 1 DS, aged 3. Thinking about having another, but not sure about the practicalities. We have a three bedroom house. DS has the smallest room (just big enough for a single bed (divan only) and a chest of drawers, no wardrobe, although there is a built-in half-height cupboard). The spare room has a double bed, a bedside table, a computer desk and a spare wardrobe. This fills it.
My parents live far enough away to need to stay over when they visit. They come up every month or two. We also have occasional visits from other friends.
If this was your house, how would you handle it? One child per bedroom, keep the double bed in the second room, one child on floor of second room when there are visitors? Children share bigger room, small room as play room, replace toys with inflatable bed when visitors? Make visitors sleep in lounge? Make visitors camp in garden?