I grew up in a large, Victorian-era house with really tall ceilings, and I remember being surprised by how small my friends' newer houses were. This was in Wisconsin. In California (by whose standards, the house in WI was very modest indeed), I rented a room in a giant house. Despite the size of the house, the room was tiny--certainly no bigger than a room in an average terraced house in Britain. However, there was a giant open "shared" space in the centre of the upstairs, that never got used, although the bedrooms all around it were rented. Same with the space downstairs. It was just wasted. The house next door was owned by a family, and they didn't use all the space either. Their upstairs part was just scattered with toys and had no furniture, and the downstairs had a formal living room they never set foot in and a tiny den where they spent most of their time. I think big houses are a waste of space unless really large families live in them. It's more important to have well-planned layouts, big windows, and high ceilings. Now DH and I live in a one bedroom flat, about a third the size of the house in CA, though nearly as big as a lot of houses in WI, but the rooms are airy and light, and we don't feel cramped at all.