Once James felled all the trees for the logs, he began building on a foundation of sand a gravel, stacking notched logs to create a living space that measures 10 feet by 20 feet. You'll see that he strategically torches the wooden boards before placing them on the roof. According to his description, it's an "ancient primitive technology" unique to Japan known as sou sugi ban, which is meant to waterproof and preserve the wood by hardening it. You'll also notice all of the detailing work -- from the front door handle to the trap-door "refrigerator" -- is done with simple handheld tools and fashioned from wood.
Since it's legitimately off the grid, James says it'll exist without any source of power for the foreseeable future, and he'll continue to use the wood stove for both heating and cooking. The project is still in progress, too, so stay tuned to his YouTube page for updates. And if you're at all interested in learning to construct your very own mini cabin in the wild, James's page is also flush with some very informative tutorials.