CAUTION: The local organizing committee or KEK (user's office) does not arrange hotel accommodations. (except KEK dormitory)
Recently, it appears that emails claiming to be from 'KEK User's Office' regarding hotel arrangements have been sent out. Please be aware that KEK or LOC do not provide any such service.
You can find hotels near Tsukuba station and Kenkyu-Gakuen station (the next station from Tsukuba Station). Shuttle buses will operate between Tsukuba St. and Kenkyu-Gakuen St. and KEK in the morning and evening.
Recommended Hotels
KEK Dormitory
https://www2.kek.jp/uskek/eng/index.html
(You need "user registration" before booking)
Near KEK
Urban Hotel https://urbanhotel.co.jp/
Near Tsukuba Station
Hotel Nikko Tsukuba https://www.nikko-tsukuba.com/eng/
Hotel JAL City Tsukuba https://www.tsukuba.hoteljalcity.com/eng/
Daiwa Roynet Hotel Tsukuba https://www.daiwaroynet.jp/en/tsukuba/
Hotel Grand Shinonome (15min walk from station) https://www.hg-shinonome.co.jp/english/
Toyoko-inn Tsukuba (Sep.11 open) https://www.toyoko-inn.com/eng/search/detail/00376/?utm_source=google&utm_medium=mybusiness&utm_campaign=gt_web376
Near Kenkyu-Gakuen Station
Hotel Bestland https://go-hotel-bestland.reservation.jp/en
Toyoko Inn Kenkyu-gakuen Ekimae https://www.toyoko-inn.com/eng/search/detail/00228/