Japanese living spaces are universally small. My current place is just under 70 m^2, so about 750 ft^2. It’s just about right space-wise, though the layout sucks. We don’t get enough light and there are a couple of dead spaces that don’t really work for any use and are effectively wasted space. There’s a ton of storage, but a lot of it is in the form of cabinets over the doorways, which makes for claustrophobic feelings going in and out of the rooms. With better layout, this would be an absolutely awesome place.
We’re moving because it’s a bit old, it’s on the fourth floor with no elevator, and we’ve had some pest problems. We have a 10 month old boy and the recent rat incursion, and probable roach problem in the summer again, made my wife uncomfortable enough that we made a solid decision to move.
The new place has a better layout, but it’s small enough that we’re going to have to make some changes to how we live when we move. It’s about 56 m^2, so under 600 ft^2, and some of our things, like our bed, are too big to fit comfortably. We’re probably going to switch to futon and a very low convertible slat platform instead of a bed.
It’s probably going to be a bit too small for us after a pretty short time, but that’s actually a good thing in a way. We are planning to move to the US soon (I would have liked to move this year, but that doesn’t look like it’s going to be possible) and we need to minimize our belongings. It will be livable, but also slightly uncomfortable, so that we’re more motivated to get the hell out when we planned to.
We’d both really love to build our own place eventually, after we move to the US. Neither of us likes huge places, but we’d probably want something bigger than possible in Japan. I’m thinking 3 bedrooms, 1.5 or 2 bathrooms, medium-large living room, nice sensible but spacious layout, probably around 1200–1500 ft^2, based on pictures I’ve seen of some nicely-designed places. I really liked a lot of the homes in The Green House both from a visual design perspective and the ideas for making a home with low energy needs.
My sister’s McMansion in Oakdale is fucking huge, and ugly. Neither one of us wants to live in a place like that, no matter how visually impressive it is.