Koku

Name: Koku
Address: 3-12-5 Kojimachi Chiyoda, Nagatacho, Kojimachi & Hanzomon, Tokyo, 102-0083, JP
Telephone: +81-3-6272-9726
Price range: ¥20,000–29,999

顧空

Kaiseki in Nagatacho, Kojimachi & Hanzomon, Tokyo, 2 min walk from Kōjimachi Station

Our analysis

24%of high-end restaurants in Tokyo have a higher dinner budget
Phonebookings only

Dinner ¥20,000–29,999Closed Mondays and SundaysBook by phone

Photos from the restaurant's page on Tabelog

All 7 photos, by dishes, the room and the entrance

Dishes 7

Its dinner budget on Tabelog (¥20,000–29,999) is lower than that of 24% of the high-end restaurants in Tokyo in this guide, and lower than that of 30% of its kaiseki restaurants. It takes bookings by phone only; 367 of the 1,067 kaiseki restaurants in Tokyo can be booked online in English. Good for a seat at the counter and dining alone (Tabelog's users recommend it for one).

How we analyze restaurants

How it compares

Kaiseki restaurants in Nagatacho, Kojimachi & Hanzomon with a dinner budget close to its own, nearest to it in our ranking.

Restaurant	Rank in Tokyo	Dinner from	Lunch from	Booking	Awards	Walk	Closed
sushi WAKU	—	budget ¥30,000–39,999	¥8,800	Online, Japanese only	—	2 min, Hanzōmon	Sun
Senbazuru	—	¥28,750	¥18,400	Online in English (TableCheck)	—	11 min, Kōjimachi	—
Kojimachi Sushi Yamato	—	¥27,500	¥11,000	Online, Japanese only	—	2 min, Kōjimachi	Mon
Sushi Makoto	—	¥38,500	¥7,500	Online, Japanese only	—	5 min, Nagatachō	Sun
Garden Restaurant Seisentei	—	budget ¥20,000–29,999	budget ¥10,000–14,999	Phone only	—	10 min, Kōjimachi	Mon
Koku	—	budget ¥20,000–29,999	—	Phone only	—	2 min, Kōjimachi	Mon, Sun

For international visitors

Book through a concierge

No online booking in English and no menu or staff in English are listed. A hotel concierge can book for you.

Menu	Not listed
Staff	Not listed
Payment
Seating and facilities	Counter seats

How to book Koku

Call 03-6272-9726 (+81-3-6272-9726 from outside Japan). Staff may speak only Japanese, so a hotel concierge can call for you.

Reservations: required. Walk-ins are not accepted.
Dining alone: recommended for one by Tabelog's users; say you are one when you book. Solo dining in Tokyo.

Can't get a table? Kaiseki nearby you can book online

The food

Photos from the restaurant's page on Tabelog.

Prices

Dinner	¥20,000–29,999 per person
Service charge	Service charge 10%
Credit cards
Electronic money	Not accepted

Opening hours

Monday	Closed
Tuesday	18:00–21:00
Wednesday	18:00–21:00
Thursday	18:00–21:00
Friday	18:00–21:00
Saturday	18:00–21:00
Sunday	Closed
Public holidays	Open

Seats and rooms

Seats	7, including 7 at the counter
Private rooms	No
Private hire	Possible
Smoking	Non smoking
Setting	Relaxing space, Counter seating
Opened	September 2025

Getting there

2 min walk (160 m) from Kōjimachi Station, Exit 3.

Also near: Hanzōmon: 5 min · Ichigaya: 10 min

Leave Kōjimachi Station by Exit 3 and walk north-west for 40 m.
Turn right and walk 60 m.
Turn left and walk 40 m.
Koku is on your right.
On your right
Look for
顧空
The restaurant's name, as on its sign
近代ビル
Written this way on the building
Floor
1F
Street level

Show this to a taxi driver

顧空東京都千代田区麹町3-12-5 近代ビル 1F

The address in Japanese, as drivers enter it

Walking directions in Google Maps Open in Apple Maps

Location

Address	3-12-5 Kojimachi Chiyoda, Tokyo 102-0083
Stations	Kōjimachi, 160 m, about 3 min walk Hanzōmon, 310 m, about 5 min walk Ichigaya, 680 m, about 11 min walk
Directions	- 3-minute walk from Exit 3 of Kōjimachi Station on the Tokyo Metro Yurakucho Line.