Love this gym! The vibe, the concept and the energy - all spot on. It is the most inspiring and supportive workout community I have been part of.
Eerika Roos-Kulvik, 35
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Everyone sees a part of you. We see the whole picture. We start with who you are and what your goals are.
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At ONE, great results start with the right people. Our trainers specialise in strength, recovery, performance, nutrition and lifestyle coaching. They're matched to your goals from day one and backed by a system that keeps your progress moving.

Every trainer at ONE works within a structure. They're mentored, supervised and held to the same standard we hold our clients to. Each week, the full team reviews results across the board: who is progressing, who needs more support and how we adjust. You don't just get a trainer. You get the whole team, applying the ONE Method.







Love this gym! The vibe, the concept and the energy - all spot on. It is the most inspiring and supportive workout community I have been part of.
Eerika Roos-Kulvik, 35
Jurriaan Puijpe, 31
Semi Private Training Premium

Giulia Battaglia, 33

Barbara van Erp, 56

Rick Luger, 36
Private Training Basic

Came back to training after a long break (and I’ve been working out for years) and honestly ONE has been the best training I’ve ever had. In just 3 months I’ve had amazing results, proper body recomposition and I feel stronger/leaner already. The sessions really push you, but in a good way and it actually works.
Panos Ellinas
Olga Pakholiuk, 33
Personal Training Basic

In just six months, I’ve lost weight, built strength, and achieved more than I thought possible. This gym’s professional approach, personalized programs, and supportive environment make it a great choice for anyone serious about their fitness goals.
Giulia Battaglia, 33

Barbara Van Erp, 56
Personal Training Basic

I’ve been blown away by my experience at One. It’s a gym that feels personal, like an actual community. When I started doing private sessions with my trainer, I immediately felt how closely my progress was being monitored to make sure I had the tools to succeed. You’re not just clocking into a class and clocking out. There are real people here who genuinely CARE about your success.
Melyssa Griffin, 37
Franca Cumbo, 54
Semi Private Training Basic

This place is more than just a gym; it’s truly a life-changing space. I’ve been training here for two months now, and I never imagined I would get this committed to my fitness journey.
Erdal Aydin
Siobhan D'Abreu, 30
Personal Training Basic

Training at One has genuinely changed my life. I don’t just feel physically better than I ever have — I’m emotionally stronger too. The trainers here are incredibly dedicated; they truly understand life’s challenges and know exactly how to adapt your program to get the most out of you, even on days when you’re exhausted or emotionally drained. The environment is wonderful. Everyone is friendly, and you can tell people genuinely want to be there. It’s an incredible place, and I’m so grateful I found it. Highly recommend to anyone looking for more than just a gym.
Natalie Wills, 44
Jonathan Butler, 31
Personal Training Premium

Joined ONE at the end of March and it’s honestly been one of the healthiest changes I’ve made this year. What I appreciate the most is how sustainable the approach feels — not just “go hard at the gym”, but actually building habits that fit my real life structure. A definite additional call out is for ONE environment which is welcoming, motivating and grounded. Very happy I started this journey here.
Gabriel Martins, 41
Louise Schalkwijk, 49
Semi Private Training Premium

Mirjam Schuele, 45
Private Training Premium

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