The Secret Seven: Inside London’s Most Exclusive Sushi Counter

London has many great places to eat. Yet, one of its best restaurants is hidden down a quiet alley. It is called Sushi Tetsu. You can find it at 12 Jerusalem Passage in Clerkenwell. From the outside, it looks very plain. Inside, there is magic. The room is tiny. It holds just seven seats. All seats face a single, beautiful wooden counter. This small size makes it one of the most private dining rooms in the United Kingdom.

Two people run the whole show. Chef Toru Takahashi cooks the food. Everyone calls him “Tetsu.” His wife, Harumi, runs the front of the house. Together, they create a warm and welcoming space. Chef Toru spent many years learning his craft. He focuses on traditional Edomae-style sushi. This style uses special techniques to bring out the best flavor in raw fish. Harumi takes care of every guest with grace. She pours sake and makes sure everyone feels at home.

You do not order from a standard menu here. Instead, you trust the chef. This is called omakase, which means “chef’s choice.” The meal lasts between three and four hours. Chef Toru prepares about 17 courses. He changes the menu every day based on the freshest fish he can find.

Guests watch the chef work right in front of them. He slices fish with total focus. He shapes the warm rice with his hands. Then, he places each piece directly onto a shiny bamboo leaf in front of you. You must eat it right away. The temperature and timing must be perfect.

The meal features many amazing dishes:

• Premium Sashimi: Fresh, clean slices of raw fish.
• Seared O-Toro: Fatty tuna that melts in your mouth.
• Sweet Tamago: A special layered egg omelet that tastes like cake.

Sushi Tetsu has one very famous rule. You cannot take photos or videos. The owners want guests to focus on the food and the conversation. No phones means no distractions. It also protects the privacy of the other guests in the tiny room. This rule makes the dinner feel like a secret club.

Finding a seat here is famously hard. It is one of the toughest reservations in London. With only seven seats, spots fill up in seconds.

The restaurant uses the SevenRooms online platform for bookings. They release seats on a strict schedule. If you want to go, you oishii sushi must be very fast. It is smart to join their digital waitlist. Sometimes people cancel at the last minute. If they do, the restaurant sends an email to the waitlist.

• Address: 12 Jerusalem Passage, Finsbury, London EC1V 4JP
• Travel: Take the train to Farringdon or Barbican station.
• Price: This is fine dining, so it costs over £200 per person.

Sushi Tetsu is more than a dinner. It is a rare chance to see a master at work.