Finding The House
The house address is:
399-9211 Nagano Kita-Azumi-gun
Hakuba-mura Kamishiro 27721-228
This address doesn't show up well on Google so here's a handy map with the coordinates:
Also, here's a photo of what the front looks like with snow:

If you're arriving in the green season, let the imagination run wild with how it looks without snow.