Soba Dokoro Hashimoto
A long-established soba restaurant with over 170 years of history, starting as a street stall in the Tenpo era (1830s). 5 min walk from Odawara Station east exit. Uncompromising ingredients: buckwheat flour from contract farms in Moshiri, Hokkaido; aged katsuobushi from a long-established Odawara shop; fresh sakura-ebi from Yui, Shizuoka. 53 seats, open year-round (except New Year's Day).
Tripadvisor 4.0/52 reviews (Odawara #35). Consistently praised across platforms: 'No compromise on ingredients', 'The flavor makes 170 years of history make sense', 'Both tourists and locals queue up.' The owner's practice of visiting producers directly is widely admired.