Just as you would expect from one of central London’s most desirable neighbourhoods, Marylebone is home to some of the capital’s best gyms: sophisticated, progressive spaces where anything connected with fitness and wellbeing is possible. The range of offerings is vast and impressive. Whether you're a performance-focused athlete, a wellness enthusiast, or a busy professional seeking a balance of fitness endeavours, Marylebone has a compelling mix of high-end gyms, private training studios, elite boxing studios, and holistic wellness centres. Here is our guide to the best destinations in W1.
Third Space Marylebone
Third Space is the benchmark for upscale fitness in Marylebone. Discreetly tucked away beneath the sumptuous Marylebone Hotel, it is a wonderfully designed space, evoking all the sophistication of a private members’ club across two decadent subterranean floors. The gym itself is bedecked with Technogym equipment, expert weights rigging, and Olympic-standard platforms, while the studio schedule ranges from candlelit yoga to performance-focused HIIT and cycle classes, while its personal trainers are some of the most in-demand of anywhere in London. Swimming here is a joy, thanks to an 18-metre ozone-treated pool, and there is a full-service wellness suite. Changing rooms are pure luxury: equipped with rain showers, natural skincare products, and sleek ‘spa’ interiors. Third Space is five-star standard throughout. A prime location to feel the burn.
Amp Marylebone
As the name suggests - AMP stands for Athletic Medical Performance - this is a fitness space where personal training is taken seriously, with unshakeable commitment to improving performance. Treated with an impressively high-tech, scientific approach, the studio - located just off Marylebone High Street - benefits those who pursue results and accountability. Each programme is built around personalised goals, and gym members receive wearable trackers to monitor progress: whether it be improving mobility, strength, speed, or ‘body composition’. Facilities include Keiser M3i bikes, Concept2 rowers, and there is even a 30-metre sled track next door to the performance-focused gym floor. Support extends beyond training: there is an on-site medical team of physios and soft tissue specialists. Overall, AMP is a boutique gym for serious fitness fanatics.
Bxr Marylebone
Founded with input from recent world heavyweight champion Anthony Joshua, BXR brilliantly renders out the art and discipline of boxing for the budding enthusiast who likes their luxury (and can handle the odd jab). Located just off Baker Street, the ultra-modern, sleek gym features a full-size boxing ring, strength and conditioning zones, and a packed timetable of impressive classes. BXR’s signature SweatBOX class is massively popular, as are VersaClimber sessions and a range of gruelling, combat-based technical drills. The training ethos is fairly demanding here, and it tends to attract a performance-minded crowd. The interiors are particularly noteworthy, with clever nods to industrial chic - lots of exposed concrete and dark wood - while there are plenty of luxury touches, with Malin + Goetz products, a towel service, and curated playlists.
Pilates at Nobu
High-intensity gyms have their place, but Nobu Pilates offers a superbly serene counterpoint. Located inside the outstanding Nobu Hotel in Portman Square, this is a highly-sophisticated, studio-led approach to strength and control. The studio is calm, thoughtfully designed, and ideal for those seeking low-impact training with an emphasis on control, alignment, and long-term strength. Small group classes are led by skilled instructors who prioritise form and individual progress, making the space particularly well suited to those recovering from injury or refining technique. With high-spec equipment, discreet service and a calming atmosphere, Pilates at Nobu specialises in delivering a high level of fitness training - without all the flying sweat and loud noise.
Kobox
By way of contrast, Kobox exudes the air of a nightclub at times. Proudly offering a high-octane, super-energetic take on fitness that prioritises fun and self-expression, it's something of a lifestyle choice: an immersive experience, where nightlife-style lighting and pumping playlists work every 50-minute class into a frenzy. Kobox classes touch upon boxing, alternating between heavy ‘teardrop’ bag combinations and HIIT floor drills. These are well-considered sessions, delivering full-body impact without being overly daunting. On that note, no experience is needed at Kobox - personal trainers are hugely warm and welcoming to newcomers, and quick to correct technique in a friendly fashion. With its graffiti walls and neon signs, and a seriously energetic and expressive clientele, Kobox is a go-to destination for a stimulating dose of high-energy fitness.
Flow Ldn
Flow LDN offers a focused, restorative approach to fitness, blending functionality with a deeply mindful approach. It specialises in low-impact, form-driven training, placing long-term physical resilience at its core. The range of classes in its schedule is highly impressive, blending barre, Pilates, yoga, and strength-based conditioning. Instructors are highly skilled and deeply knowledgeable, utilising their expertise in anatomy, rehabilitation, and movement science. The clue to Flow’s approach is in its name: all its sessions are deliberately paced, cultivating awareness of alignment, breath, and range of motion - rather than being frenetic and fraught. As such, Flow is ideal for post-injury recovery or building more sustainable strength work. The studio space is tranquil: wood floors, soft lighting, and muted tones. Low-impact fitness is revered here: both body and mind are considered, offering a fine alternative to a mainstream training environment.
Marylebone’s fitness landscape reflects the neighbourhood itself: high-calibre variety, brimming with uncompromising quality. From high-energy, performance-led training environments to calming studios focused on control and long-term recovery, the area offers a diverse range of facilities to suit varied needs and lifestyles. For those who are investing in their health, Marylebone is a prime destination for fitness and wellbeing.
