The artist who drew Kanon used different sites in jepang for inspiration. Here are a couple of examples. In the link section is a link to Punyari's Island Adventures which has about 20 foto of real places in jepang that ended up in Kanon.
foto
kanon
real kanon places
shiori
yuichi
great anime
anime drama
nayuki
This Kanon foto contains
jalan, pemandangan kota, perkotaan, kota adegan, perkotaan pengaturan, bungalow, cottage, dikenali, and brownstone.
There might also be
teras, baris rumah, rumah kota, rumah petak, teras depan, and serambi depan.