Kioku by Endo

Worth the Effort to Book; If You Plan Ahead

Kioku by Endo is not an easy reservation to land. The sixth-floor room inside the Old War Office building on Whitehall is in high demand, the combination of a Michelin Plate recognition (2024 and 2025), a high-profile chef in Endo Kazutoshi, a setting that delivers skyline views over the Houses of Parliament means tables go fast. Book at least three to four weeks out for dinner; the lunch sitting is your leading route in if the calendar is tight, at £55 for three courses it is also the sharpest value proposition on the menu. If you are visiting in summer, request a terrace seat when you book; there is a separate, more abbreviated menu for outdoor dining, but the trade-off in choice is worth it for the setting.

The Case for Booking

Kioku opened as a Japanese-Italian fusion concept, but that experiment is behind it. The kitchen has moved fully into the contemporary Japanese register that Endo Kazutoshi built his reputation on at Zuma and at Endo at the Rotunda. That shift is a material improvement and the reason the venue now holds its Michelin Plate with some conviction. The current menu centres on nigiri, sashimi, robata-grilled meats and fish, supplemented by small plates. A 'Taste of Kioku' tasting option is available at £150 per person for those who want the kitchen to make the decisions.

The flavour profile here runs clean and precise rather than bold and sauced. Robata cooking adds smoke and char without obscuring the quality of the protein underneath, the technique requires good sourcing to land, sourcing is where Endo's reputation is grounded. The sushi and sashimi have drawn consistent praise in reviews, the small plates extend the meal in directions the robata section does not cover. Desserts are deliberately Western-facing: White Chocolate Tart and Strawberry Mille-feuille are the kind of finishes that do not challenge the guest. Whether that is a strength or a limitation depends on how committed you are to staying within a Japanese framework throughout.

The room sits on the sixth floor of the Raffles London at The OWO, the hotel occupying the converted Old War Office building at 57 Whitehall. Start in the ground-floor bar before heading up, the building itself is worth a few minutes on the way in, arriving with a cocktail in hand rather than going straight to the lift puts you in the right frame of mind for the room. The Opinionated About Dining ranking of #514 in Europe (2025) is a useful calibration: this is a serious restaurant with a settled identity, not a hype reservation.

The Chef's Counter and What It Changes

Chef's table option at Kioku is the version of this meal that makes the most sense for an engaged diner. The standard room delivers the views and the menu, but the chef's table puts you close enough to the kitchen to see the nigiri being formed and the robata being worked, with a kitchen organised around Japanese technique, proximity matters. Endo Kazutoshi trained within a tradition where the relationship between cook and guest at the counter is part of the transaction, not a bonus. If you are booking for a special occasion and the choice is between a window table and the chef's table, the latter is the better call for anyone who cares about the food. The private room in the turret is available for groups who want full separation from the main room.

A-la-carte format means you are building your own experience at the counter or in the main room, which requires more knowledge than a fixed omakase sequence would. The 'Taste of Kioku' at £150 per person removes that decision load and is the more reliable route for a first visit, particularly if Japanese contemporary is not your native format. Return visits can work through the a-la-carte card with more confidence.

Ratings and Trust Signals

• Michelin Plate, 2024 and 2025
• Opinionated About Dining Leading Restaurants in Europe, Ranked #514 (2025)

Booking and Practical Details

Booking difficulty is high. Dinner reservations require planning four weeks out as a baseline. Lunch at £55 for three courses is the accessible entry point and represents the most favourable price-to-quality ratio on the menu. The 'Taste of Kioku' at £150 per person is the full-commitment option. The terrace operates on a separate, shorter menu in warmer months. For groups, the private room in the turret is available on request. The venue is at 6th Floor, The OWO, 57 Whitehall, London SW1A 2BX, inside the Raffles London hotel. The ground-floor bar in the building is a functional pre-dinner option and worth building into your arrival.

How It Compares

See the full comparison section below for how Kioku sits against London's other £££ options.

Explore More in London

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Japanese Contemporary Worth Knowing Beyond London

• The Japanese Restaurant in Andermatt
• Eika in Taipei

Other Destination Restaurants in the UK

• The Fat Duck in Bray
• L'Enclume in Cartmel
• Moor Hall in Aughton
• Gidleigh Park in Chagford
• Hand and Flowers in Marlow
• hide and fox in Saltwood

Frequently Asked Questions

What should a first-timer know about Kioku by Endo?

• The venue sits on the sixth floor of Raffles London at The OWO, arrive early and use the ground-floor bar first.
• The menu is à la carte, but the 'Taste of Kioku' at £150 per person is the lower-friction option for a first visit.
• Lunch at £55 for three courses is significantly better value than dinner and is the right call if budget is a consideration.
• The Michelin Plate and OAD #514 Europe ranking confirm this is a serious kitchen, not a views-and-branding play.
• Booking difficulty is high, plan four or more weeks ahead for dinner.

What should I order at Kioku by Endo?

• The sushi and sashimi have drawn the most consistent praise across reviews, lead with those.
• Robata-grilled meats and fish are the other anchor of the menu and represent the kitchen's Japanese-technique strength.
• Small plates extend the meal beyond what the robata section covers alone.
• If you prefer to avoid decision fatigue, the 'Taste of Kioku' at £150 per person hands menu curation to the kitchen.
• Desserts skew Western (White Chocolate Tart, Strawberry Mille-feuille), set expectations accordingly.

Can I eat at the bar at Kioku by Endo?

• The ground-floor bar inside the OWO building is available for drinks before or after dinner and functions as a standalone option for cocktails.
• The chef's table inside Kioku itself is the counter-proximity option for the restaurant, this puts you close to the kitchen and is worth requesting for a special occasion over a standard window table.
• Walk-in bar seating at the restaurant level has not been confirmed in available data; treat the restaurant floor as a reservation-only space and book accordingly.

Does Kioku by Endo handle dietary restrictions?

• No specific dietary restriction policy is available in current venue data, contact the restaurant directly before booking.
• The menu is structured around Japanese technique with fish, seafood, meat as primary proteins; pescatarian guests will have more options than vegetarians or vegans, though the exact scope is unconfirmed.
• Given the price point and occasion-dining positioning, the kitchen is likely to accommodate requests with advance notice, but confirm this when booking rather than assuming.