Giulia Battaglia, 33

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A free consultation designed to understand your goals, your lifestyle and the best path forward. Together we'll explore how the ONE Method can support your health and performance.
Giulia Battaglia, 33

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

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
Barbara van Erp, 56

Franca Cumbo, 54
Semi Private Training Basic

Rick Luger, 36
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
Barbara Van Erp, 56
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
Olga Pakholiuk, 33
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
Jurriaan Puijpe, 31
Semi Private Training Premium

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

Jonathan Butler, 31
Personal Training Premium

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
Siobhan D'Abreu, 30
Personal Training Basic

Mirjam Schuele, 45
Private Training Premium

Book your visit and see how training, lifestyle and context come together in one system, built around you.
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A free consultation is where your journey begins. We take the time to understand who you are, what you want to achieve and how coaching can fit into your life. It's an opportunity to ask questions, explore our approach and discover whether ONE is the right fit for you.

After losing a family member, I understood that health cannot wait. I built ONE to be more than a gym. A place where real support meets real people. So you progress in real life.
Hear how real lives have been changed training with us.
A relaxed conversation about your goals, what's motivating you and what's held you back so far. We then walk you through the ONE Method, build a first plan and match you with your coach. You'll also get a tour of the gym, meet the team, and enjoy a coffee or tea.
Around 30 to 45 minutes.
Absolutely. No experience needed, the consultation is the perfect place to start.
Nothing. You don't need any sport gear for this conversation. Feel free to bring a notebook if you'd like to take notes, and if you decide to join, everything we discuss will be sent to you by email.
Leave your details (here) and our Sales Manager will get in touch to arrange it.
Nothing, the consultation is free.
No. The consultation is free with no obligation. It's there to help you decide if ONE is the right fit.

A free consultation designed to understand your goals, your lifestyle and the best path forward. Together we'll explore how the ONE Method can support your health and performance.