Train with
purpose.
Belong from
day one.

Small-group functional fitness and open gym in Peterborough.

8 people per classOpen 07:00-20:00All levels welcome
A coach leading a small-group functional fitness session

A gym that knows your name.

No intimidating cliques. No getting lost in a packed room. GRND brings proper coaching, flexible training and a close-knit community under one roof.

Coached

Every class is capped at eight, so you get the attention, feedback and scaling you need.

8people per class

Inclusive

Start from where you are. Every session can be adapted without losing the challenge or the fun.

Every levelwelcome

Independent

A local gym with its own identity, built around functional fitness rather than affiliation or labels.

One community.
Six ways to train.

GRND SWEAT

Conditioning

Get your heart pumping with a high-energy conditioning class focused on improving fitness, endurance, and stamina. Expect a mix of cardio, functional movements, and interval-style training that will leave you feeling accomplished.

GRND LIFT

Weightlifting

Build strength, improve technique, and develop confidence under the bar. This class focuses on foundational lifts, Olympic lifting, and accessory work to help you move better and lift stronger.

GRND LEGENDS

55+ & Low Impact Fitness

A welcoming class designed for those aged 55+, anyone returning to exercise, or those looking for a lower-impact, lower-intensity workout. Improve strength, mobility, balance, and confidence in a supportive environment at your own pace.

GRND TEENS

Ages 14–17

Designed for teenagers looking to build strength, confidence, and fitness through functional training. Our coaches focus on teaching proper movement, developing healthy habits, and creating a fun, supportive environment for young athletes.

GRND OPEN GYM

Train Your Way

Enjoy the freedom to complete your own training at a time that suits you. Whether you’re following a personalised programme or getting in extra practice, our coaches are on hand to offer guidance and support whenever you need it.

A coach supporting a member during a functional fitness session
A barista pouring latte art into a cup of coffee

Put the work in. Feel at home.

GRND is the kind of place you want to stay after the final rep. A warm welcome, good coffee and coaches who care about the person behind the programme.

  • A welcoming home for beginners and experienced athletes
  • Coaching that builds confidence, not dependence
  • Open gym freedom throughout the day
Come and meet us

Open daily.
Train around your life.

07:00 to 20:00Monday to Sunday

Choose a day

Tap any day to update the timetable below.

Today's schedule
8 sessions
GRND WOD
GRND SWEAT
GRND WOD
GRND LEGENDS
GRND OPEN GYM
GRND WOD
GRND SWEAT
GRND WOD

Class times may change as GRND grows.

Check availability and book
Lifetime rate

Join the
Founding 30.

£60a month
for life

The first 30 people to join GRND Unlimited pay £60 instead of £80 a month, for as long as their membership stays active.

Register your interest

Leave your details and we’ll contact you with everything you need to secure a Founding 30 membership.

No payment today. Registration does not reserve a membership. The lifetime rate goes to the first 30 completed GRND Unlimited memberships.

Pick your pace.
Keep your place.

Every membership is built around the same thing: good coaching, a supportive room and the freedom to make training work for you.

GRND Student

£50 per month

  • Unlimited classes
  • Unlimited open gym
  • Valid student ID required

GRND Essential

£60 per month

  • 2 classes each week
  • Unlimited open gym
  • Full community access

Legends or Teens

£40 per month

  • Purpose-built sessions
  • Legends 55+
  • Teens ages 14-17

Drop-in session

£10 per session

Join an available coached class without committing to a membership.

One-to-one coaching

Focused time. Personal progress.

Single hour£40
Block of 5 £20 saving£180
Block of 10 Best value · £50 Savings£350

Floor space for local PTs

Coach your clients from GRND. Regular daytime floor space is available for personal trainers in Peterborough. Tell us the days and times you need and we’ll confirm availability.

GRND Fitness founders Adam and Jess

Our Story by Jess and Adam

What started as a shared passion for health and fitness has become the biggest leap of our lives.

After spending over 10 years serving as police officers, we made the decision to leave behind the careers we’d built to pursue something we truly believed in - creating a gym that puts people first.

This isn’t just a business to us; it’s our baby. We wanted to build more than a place to work out. We wanted to create a community where people feel welcomed, supported and inspired to become the best version of themselves, regardless of where they’re starting from.

We know that fitness isn’t just about lifting weights or chasing personal bests. It’s about building confidence, improving mental wellbeing, creating healthy habits and surrounding yourself with people who genuinely want to see you succeed.

Whether you’re stepping into a gym for the very first time or you’re an experienced athlete, our mission is the same: to provide expert coaching, a positive environment and a community that feels like home.

We’re incredibly proud to have turned our passion into our purpose, and we can’t wait to welcome you into the family.

This is more than a gym. It’s a community. And we’re building it together.

Ready to GRND it out?

Your first rep starts here. Tell us what you want from your training and we will help you find the right place to start.

Find GRND in Peterborough

Unit 12, Wharf Road Industrial Estate
Peterborough, PE2 9PS
Get directions