The 1645 Group
Personal Trainers
The 1645 Group
Garlands Ln, Harrow
# The 1645 Group
The 1645 Group is a fitness coaching business based in Harrow, with additional locations in Marylebone and Wembley. Founded by Dan Rosies, a former Head of Strength & Conditioning for national sports teams, the business combines elite-level coaching expertise with an inclusive, community-focused approach.
The business serves two distinct audiences: everyday clients seeking to build confidence and strength in their bodies, and those with specific fitness goals who need professional guidance. Whether you're completely new to structured training or already experienced, The 1645 Group provides science-backed programming tailored to your level.
What sets them apart is Dan's rare blend of credentials—having worked with elite athletes in rugby and basketball whilst maintaining genuine passion for supporting everyday people. Their philosophy rejects one-size-fits-all approaches; every session, whether personal training, group fitness, or yoga, is deliberately challenging yet accessible.
The business operates without requiring memberships, lowering barriers to participation. Their weekly schedule in Harrow offers diverse options: high-intensity sweat sessions, structured strength training, and restorative yoga across morning and evening slots. Client testimonials consistently highlight how the coaching builds both physical strength and psychological confidence, particularly around weight training in conventional gyms.
Beyond physical results, The 1645 Group intentionally cultivates community and belonging, positioning themselves as more than a transactional fitness provider.
The 1645 Group is a fitness coaching business based in Harrow, with additional locations in Marylebone and Wembley. Founded by Dan Rosies, a former Head of Strength & Conditioning for national sports teams, the business combines elite-level coaching expertise with an inclusive, community-focused approach.
The business serves two distinct audiences: everyday clients seeking to build confidence and strength in their bodies, and those with specific fitness goals who need professional guidance. Whether you're completely new to structured training or already experienced, The 1645 Group provides science-backed programming tailored to your level.
What sets them apart is Dan's rare blend of credentials—having worked with elite athletes in rugby and basketball whilst maintaining genuine passion for supporting everyday people. Their philosophy rejects one-size-fits-all approaches; every session, whether personal training, group fitness, or yoga, is deliberately challenging yet accessible.
The business operates without requiring memberships, lowering barriers to participation. Their weekly schedule in Harrow offers diverse options: high-intensity sweat sessions, structured strength training, and restorative yoga across morning and evening slots. Client testimonials consistently highlight how the coaching builds both physical strength and psychological confidence, particularly around weight training in conventional gyms.
Beyond physical results, The 1645 Group intentionally cultivates community and belonging, positioning themselves as more than a transactional fitness provider.
Services offered
Personal training 1:1 sessionsGroup strength training classes (Strong:45)High-intensity cardio classes (Sweat:45)Yoga classes (Yoga:45)Strength and conditioning coachingAthletic performance trainingFitness confidence buildingCommunity fitness coaching