Okay, so if you're an architecture/design/materials nerd, this is a cute concept and it's probably not easy for you to get these specific materials at your loca

Okay, so if you're an architecture/design/materials nerd, this is a cute concept and it's probably not easy for you to get these specific materials at your local home depot. However, If you have the time, I really recommend you build something like this yourself. It will probably be 10x cheaper. It is not difficult to build something generally like this, and this thing is so tiny it might not require any permit at all. The real fun of this is you could actually use traditional Japanese timber framing methods to build it. You could do more with it too, like make the false floor double as storage, build in a murphy bed that folds up to be a desk, add sliding panels to act as a privacy screen, and a flip-down storm shutter (with solar panels on top!!! let's go crazy) so you don't need to use glass doors. I would also replace that ugly interior plywood with pretty much anything else (even bamboo) with goza mats for carpet. Also, like someone else mentioned, you don't need that whole porch. It could be extended forward up to the glass (or whatever), with a small cross-section of bamboo as a baseboard where the drop-off occurs, giving more of a natural flow from the inside to the out. The left-hand side could be reserved as the genkan for removing shoes, lowered to add to the aesthetic. Personally I think this whole idea would have been better served with organic architecture features, rather than looking like a weird ikea shed moved to Japan.