Release rule
How to Book Sushi Iwase: Reservation Release Day, Phone and Rules (2026)
すし 岩瀬 · Nishi-Shinjuku, Tokyo · Sushi · Lunch & dinner
How to book this house
The release day is not published. Book online via Tabelog or Ikyu, or by phone; same-day seats sometimes by phone.
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Ten seats, closed Mondays; lunch about ¥15,000, dinner about ¥26,000.
- Lunch / dinner
- Lunch & dinner
- Phone line
- 03-6279-0149 (Ikyu; Japanese) / 050-5456-5279 (Tabelog line)
- The house's cancellation charge
- Same day, with notice100%
- Same day, no notice (no-show)100%
Charged by the house, not by us. A plan's own policy takes precedence.
Source: Ikyu, read 2026-10-04
- If a seat comes back
Cancellations: on the restaurant's Ikyu page, tick "空席通知メールに登録する" (vacancy-notice email) and Ikyu notifies you — members only, offered by some restaurants, and it does not hold the seat. faq.ikyu.com
Trained at Sushisho Masa, in the Sushi Sho family
Allergies or dietary needs? Make a Japanese dining card →
Next release days
Rule not published — we confirm per date
Last verified October 3, 2026 · checked by our desk October 4, 2026
All times are Japan Standard Time (UTC+9).
When does Sushi Iwase open its reservation book?
The release day is not published. Book online via Tabelog or Ikyu, or by phone; same-day seats sometimes by phone. Ten seats, closed Mondays; lunch about ¥15,000, dinner about ¥26,000. All times are Japan Standard Time (UTC+9).
What does Sushi Iwase charge if you cancel?
Same day, with notice 100% / Same day, no notice (no-show) 100%. Charged by the house, not by us. A plan's own policy takes precedence. Source: Ikyu, read 2026-10-04
How do I book Sushi Iwase from abroad?
Sushi Iwase takes reservations online through Tabelog and Ikyu, which you can use from abroad with your own account and a credit card. If you would rather not, our Tokyo desk can request it for you: ¥12,000 per seat, charged only if the table is secured. A free release-date alert emails you the day before, on the morning of release day (08:00 JST) and about 30 minutes before when the opening time is known; houses that open a little every day come in a weekly summary.
What time zone is the release time?
All times are Japan Standard Time (UTC+9). Release days are computed from the house's published rule and re-checked monthly.
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- ShigeyoshiHarajuku, Tokyo
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← All 1,240 houses in the booking calendar
Rules are verified against official notices and platform listings and re-checked monthly. Houses change their systems without warning; treat the calendar as a planning tool. For restaurants in our collection, our desk confirms the specifics for your dates when you request.