Grand Union Jiu Jitsu at Gymbox is a Brazilian Jiu-Jitsu gym in London, Greater London, offering Gi, No-Gi, kids, women's and MMA classes. It offers a free trial class. It is rated 5/5 from 45 Google reviews.
Welcome to our community where we cultivate strength, resilience, and positivity.
Contact the gym for current prices.
Contact the gym for current prices.
Gymbox, 12A Leather Ln, London EC1N 7SS, United Kingdom
Location Information
Contact gym for detailed directions
Address: Gymbox, 12A Leather Ln, London EC1N 7SS, United Kingdom
Welcoming community with women's only classes and dedicated kids programs for all family members.
Conveniently located in Gymbox, making it easily accessible for training.
Details last checked: September 2025. Contact the gym directly for the current timetable and prices.
No prior experience is necessary. Grand Union Jiu Jitsu at Gymbox welcomes complete beginners and provides a supportive environment to learn Brazilian Jiu Jitsu fundamentals.
For your first class, bring comfortable athletic clothing, a water bottle, and a positive attitude. The gym can provide information about purchasing a gi (BJJ uniform) once you decide to continue training.
Yes! We offer dedicated kids Brazilian Jiu Jitsu programs. Contact us for age group information and class schedules.
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⭐⭐⭐⭐⭐
Really a great gym and experience! Dropping into this gym includes a day pass to the entire establishment so if you like, you can get your swol on before you roll so you can look intimidating. I came in for a drop in class on a Sunday and everyone on the mats were very welcoming. Apparently Sunday is the review for the prior week but not to worry, I got plenty of information from the instruction and my rolling partner. Both were very helpful with the small details around the specific movement sequence we were looking to learn. Igor was running the class and had a very calm demeanor about his instruction. After the instruction, it was time to roll. On Sundays they keep going until everyone leaves so don't worry about getting enough rolls in. Each of my rolling partners were tough but respectful and wiling to talk through the experience. Really couldn't ask for much else.
⭐⭐⭐⭐⭐
Amazing team, great bjj school to learn and train. Thanks to Eduardo, Cesar, Max, Pawel, Luis. Safe and comfortable environment to train. Coaches and team mates all supportive and make it an overall positive experience.
⭐⭐⭐⭐⭐
Grand union is one of the best if not the best place to Train BJJ in London. An amazing team of coaches all with their unique style and approach to the art of BJJ. A friendly atmosphere with a huge range of skilled players to roll with of all shapes and sizes. Plenty of classes to choose from so no excuses to miss out on a good roll.!