The artist who drew Kanon used different sites in japón for inspiration. Here are a couple of examples. In the enlaces section is a link to Punyari's Island Adventures which has about 20 fotos of real places in japón that ended up in Kanon.
foto
kanon
real kanon places
shiori
yuichi
great anime
anime drama
nayuki
This Kanon foto contains
patio, terraza, porche, porche delantero, complejo, complejo hotelero, complejo de vacaciones, complejo turístico, centro turístico, centro vacacional, resort, hotel resort, and complejo vacacional.
There might also be
bungalow, cabaña, casa de campo, casa rural, complejo de hotel, spa, hotel resort, rancho, and casa de campo.