Certified Kobe beef restaurant in London, Marylebone
Aki is a certified Kobe beef restaurant at 1 Cavendish Square, Marylebone, London, one of only 19 in the UK...
Aki is a certified Kobe beef restaurant at 1 Cavendish Square, Marylebone, London, one of only 19 in the UK licensed by the Kobe Beef Marketing & Distribution Promotion Association. Our 140g Kobe Japanese sirloin costs £177.50 and is DNA-traceable to a single Hyogo farm.
The search for an exceptional Kobe beef restaurant in London can often feel like navigating a labyrinth of claims. The term “Wagyu” appears on the menus of many London restaurants like a promise of luxury, yet for discerning diners, finding authentic, certified Japanese beef requires verifiable proof. At Aki, that journey begins with complete traceability back to Hyogo Prefecture and ends at your table with a guarantee cast in bronze.
THE TAKE
Aki: a certified Kobe beef restaurant in Marylebone, London
Aki is one of just 19 restaurants in London registered with the Kobe Beef Marketing & Distribution Promotion Association — the official governing body in Japan that authorizes every kitchen in the world permitted to buy, cook, and serve genuine Kobe beef. Our official registration number is No. 2077, verifiable directly in the Association’s official Kobe Beef restaurant directory.
This is not a trophy you can buy. It is an accreditation earned through a rigorous licensing process confirming that every cut of Kobe beef we serve is 100% traceable to a registered farm in Hyogo Prefecture, Japan, complete with a unique 10-digit ID number and a DNA-verified passport. Our authentic Kobe Japanese sirloin (£177.50, 140g) sits alongside a wider selection that includes A4 Miyazaki sirloin (£85), B3 Japanese crossbreed sirloin (£68), and AA8 Australian crossbreed Denver cut (£45). Experience certified Japanese dining at 1 Cavendish Square, Marylebone.
Reservations: Tables for our Kobe dining experience can be booked in advance via SevenRooms.
The foundation
What is Wagyu? The rare breed behind authentic Kobe beef
To truly appreciate premium Japanese beef, one must first understand the foundational term: Wagyu. The word itself, from the Japanese characters 和牛, literally translates to “Japanese Cow”. It refers not to a single cut, but is an honorific classification for four specific native breeds of Japanese cattle. The defining characteristic of these breeds is a genetic predisposition for developing intense, finely-grained intramuscular fat, known as sashi. This intricate marbling produces the silken texture and deep umami that has made the beef celebrated worldwide.
What sets Wagyu apart:
- The bloodline: four native Japanese breeds with an innate genetic ability to develop fine intramuscular marbling
- The rearing: cattle raised in peaceful, low-stress environments on small, family-run farms for far longer than conventional cattle
- The diet: carefully formulated nutrition of rice straw, grain, and wheat, with pure freshwater throughout
- The philosophy: a Japanese craft tradition rooted in animal welfare and uncompromising standards of husbandry
The distinction
Kobe beef vs Wagyu: understanding the rare, certified legend
Here lies the single most important distinction in Japanese dining: all authentic Kobe beef is Wagyu, but only a tiny, elite fraction of Wagyu can ever be certified as Kobe. The term “Kobe beef” does not refer to a generic breed, but an exclusive appellation—a protected designation of origin as strictly policed as Champagne or Parma. For any cut to legally bear the name Kobe, it must satisfy non-negotiable criteria enforced by the Kobe Beef Marketing & Distribution Promotion Association.
The three non-negotiable requirements:
- The lineage: the beef must come exclusively from purebred Tajima-gyu cattle, a pure bloodline of the Japanese Black breed
- The terroir: the cattle must be born, raised, fed, and processed entirely within Japan’s Hyogo Prefecture, of which Kobe is the capital city
- The standard: the carcass must achieve a Beef Marbling Score (BMS) of 6 through 12, a high Meat Quality Score, and meet precise carcass weight thresholds
Anything less cannot carry the name. It may be excellent Wagyu, but it is not certified Kobe beef. This exclusivity is why genuine Kobe steak is one of the world’s rarest gastronomic treasures, and you can enjoy it at our tables in Cavendish Square.
Why Aki is one of London’s rare, certified Kobe beef restaurants
Understanding these strict Japanese agricultural laws clarifies the meaning behind the Bronze Golden Calf certification statue displayed at our Marylebone restaurant. This is an official authentication seal awarded by the Kobe Beef Marketing & Distribution Promotion Association only to licensed venues that undergo annual inspections and maintain unbroken cold chains directly from Hyogo.
The certification
The Bronze Golden Calf, earned, never bought
To receive this official bronze statue, a restaurant must demonstrate a verifiable supply chain from a registered Hyogo farm to an authorized UK importer. Fewer than a handful of dining destinations in London hold this credential. It is our visible promise of authenticity.
The traceability
Every cut comes with a passport
Every cut of Kobe beef we serve carries an individual 10-digit traceability ID and a DNA-verified passport from the official Tajima Beef registry. Guests can trace their cut back to the exact animal, lineage, and farm in Hyogo Prefecture.
The symbolism
A map to the origin, cast in bronze
The statue’s design reflects the pedigree of the meat on our menu: the figure depicts the pure Tajima-gyu bull, adorned with the Japanese chrysanthemum emblem representing the prefecture of Hyogo.
The experience
Trust, proven on the plate
What does this lineage mean for your dining experience? Total confidence. When our Kobe Japanese sirloin arrives at your table, you can enjoy a cut that represents centuries of Japanese artisanal rearing, grilled to precision over white oak binchotan coals.
The Kobe table
Reserve your table at London’s certified Kobe beef restaurant
The Bronze Golden Calf is your proof of authenticity. Every cut of our Kobe beef is traceable to Hyogo, Japan, with an individual ID number and official certificate. 140g sirloin, £177.50. Advance booking is recommended.
From Hyogo to London: the traceable journey of authentic Kobe steak
The journey from the tranquil pastures of Hyogo to Central London is one of extreme care and respect. Each cut of Kobe beef is carefully aged, flown under strict climate controls, and prepared by our culinary team at Aki. Because pure Kobe fat melts at an exceptionally low temperature (~25°C), the marbling dissolves immediately on the palate, releasing a delicate sweetness and deep umami that no other steak can match. It is a celebration of origin, precision, and authentic Japanese gastronomy.
The wagyu and Kobe beef menu at Aki London
While certified Kobe beef represents the pinnacle of our offering, our menu presents a curated exploration across the grades of Japanese and Australian beef. Every cut is served with mini morels, asa zuke pickles, and our signature brown butter wasabi mustard wafu.
The entry point
AA8 Australian cross breed Denver cut
£45
140g. An accessible introduction to the wagyu spectrum, offering balanced marbling, hearty beef character, and exceptional tenderness from the chuck cut.
Best for: First-time wagyu diners or guests pairing steak with our sushi and sashimi selections.
The crossbreed
B3 Japanese wagyu crossbreed sirloin
£68
140g. A distinct step into Japanese beef craft. The B3 classification provides balanced marbling that offers savory depth without overpowering the palate.
Best for: Diners seeking to appreciate the texture and character of Japanese cattle breeding.
The regional star
A4 Japanese Miyazaki sirloin
£85
140g. Miyazaki beef is renowned for winning Japan’s “Wagyu Olympics” across consecutive editions. The A4 grade delivers silken marbling and memorable richness.
Best for: Connoisseurs who want competition-level Japanese beef alongside our robata dishes.
The legend
Certified Kobe Japanese sirloin
£177.50
140g. The definitive experience. Officially registered with the Kobe Beef Marketing & Distribution Promotion Association, traceable to a single Hyogo farm, and accompanied by its DNA certificate. Intensely marbled with a melt-in-the-mouth texture.
Best for: Guests seeking the authentic standard of genuine Kobe steak in London.
Plan your visit
Dining information: Aki Marylebone
- Address: 1 Cavendish Square, Marylebone, London W1G 0LA. Located two minutes from Oxford Circus and Bond Street stations.
- Opening hours: Seven days a week from 12:00 PM. Late night dining Thursday to Saturday until 2:00 AM.
- The Kobe experience: 140g Certified Kobe Japanese sirloin (£177.50), presented with its official ID passport and the Bronze Golden Calf guarantee.
- Dietary needs: Halal, vegetarian, vegan, and gluten-free options are available throughout our wider menu.
- Dress code: Smart casual.
- Atmosphere: Dine in our Grade II listed main dining hall, beneath the Atrium glass roof, or join us downstairs at Kiyori vault bar with live DJs Thursday to Saturday.
- Reservations: Essential for Kobe cuts. Book your table online or contact our reservations desk.
Authentic Japanese fine dining at Cavendish Square
The search for a true Kobe beef restaurant in London is fundamentally a search for trust. At Aki, that trust is anchored in official Japanese certification, proven by traceability, and delivered over binchotan embers. Experience the craft of authentic Japanese dining in Marylebone.
Aki London is one of only 19 licensed venues in London holding the official Bronze Golden Calf accreditation from the Kobe Beef Marketing & Distribution Promotion Association, guaranteeing that every cut of Kobe beef served is traceable back to Hyogo Prefecture, Japan. The full dining menu includes sushi, sashimi, robata grill, and an extensive sake cellar served across three floors. Open seven days a week from 12:00 PM, with late-night dining until 2:00 AM at 1 Cavendish Square, Marylebone W1G 0LA
Reserve your table
Experience authentic Kobe beef in London at Aki
Our official bronze seal guarantees certification. Our kitchen guarantees robata mastery. Reserve your table at Aki and experience authentic Kobe steak at Cavendish Square.
Frequently asked questions about Kobe beef at Aki
Everything you need to know before you book
What is the difference between Kobe beef and Wagyu?
All Kobe beef is Wagyu, but only a tiny fraction of Wagyu can legally be called Kobe. Wagyu refers broadly to four native Japanese cattle breeds recognized for intense marbling. Kobe beef is an exclusive Japanese appellation that requires purebred Tajima-gyu cattle, born, raised, fed, and processed entirely within Hyogo Prefecture, achieving a Beef Marbling Score of 6 or higher. The standard is enforced by the Kobe Beef Marketing & Distribution Promotion Association.
Is Aki’s Kobe beef certified authentic?
Yes. Aki is officially registered under License No. 2077 with the Kobe Beef Marketing & Distribution Promotion Association in Japan. Every cut served at our Cavendish Square restaurant carries a unique 10-digit traceability ID and an official certificate verifying its Tajima-gyu lineage from Hyogo Prefecture.
How many restaurants in London serve certified Kobe beef?
Only 19 restaurants in London are licensed by the Kobe Beef Marketing & Distribution Promotion Association to buy and serve authentic Kobe beef. Aki is registered under License No. 2077. The full roster of verified venues is publicly searchable in the Association’s official directory.
How much does Kobe beef cost at Aki London?
Our certified Kobe Japanese sirloin is £177.50 for 140g. We also offer a wider wagyu selection: A4 Japanese Miyazaki sirloin (£85), B3 Japanese wagyu crossbreed sirloin (£68), and AA8 Australian crossbreed Denver cut (£45). All cuts are 140g and served with mini morels, asa zuke pickles, and brown butter wasabi mustard wafu.
What is the Bronze Golden Calf?
The Bronze Golden Calf is an official certification statue presented by the Kobe Beef Marketing & Distribution Promotion Association exclusively to licensed restaurants. To earn and retain it, a restaurant must prove a direct, audited supply chain from registered Hyogo farms. The statue features the pure Tajima-gyu bull alongside the chrysanthemum crest of Hyogo Prefecture.
Can I order other dishes alongside Kobe beef?
Yes. Aki offers a complete Japanese fine dining menu. Guests frequently begin with nigiri, sashimi, or robata skewers before enjoying Kobe beef as the centerpiece of their meal, paired with boutique sakes or wines from our cellar.
Do I need to book in advance for Kobe beef?
Yes. Authentic Kobe beef is imported under tight international quotas, making daily availability limited. We recommend booking two to three weeks in advance via our SevenRooms booking link, particularly for weekend dinner reservations.
Where is Aki located in London?
Aki is located at 1 Cavendish Square, Marylebone, London W1G 0LA, a two-minute walk from Oxford Circus and Bond Street (Elizabeth Line) stations.
