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Rated 4.9/5 from 1,000+ reviews on ClassPass

HIIT, functional & circuit training in London

HIIT, Circuit, Functional, or Hybrid training isn’t just about burning calories or building bulk. Developing total-body athleticism is the key to sculpting a lean, defined physique while unlocking profound health benefits. These training styles ignite your metabolism, improve cardiovascular health, and help you feel amazing.

Check out our range of higher-intensity hybrid and cardio group classes below at our private studio in Brixton, South West London.

TRAIN HARD. SWEAT. LOOK & FEEL INCREDIBLE.

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Rated 4.9/5 stars on ClassPass

Over 1,000+ reviews

Small group classes sizes

Up to 15 people per class, for a personal coaching experience

Training for everyone

Inclusive for beginners to elite training

High intensity & circuit group classes

Check out our range of sweat-shedding, strength-building and fat-burning classes below.

The LAB.

Cardio Flow

  • HYBRID CARDIO

  • Wednesday

  • 50 minute class

The LAB. Cardio Flow is a 50-minute workout combining smooth cardio (RowErg, BikeErg, SkiErg) with functional strength exercises. Boost stamina, burn fat, and strengthen your heart for more energy and confidence.

Expect to be sweaty and feel incredible. Suitable for all levels seeking a fun, effective workout.

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The LAB.

Surge

  • HIGH INTENSITY STRENGTH + CARDIO (HYBRID)

  • Tuesday

  • 50 minute class

A high-energy class blending intense lifting with bodyweight exercises. Using dumbbells and kettlebells, it builds lean muscle, boosts strength, and burns calories. Suitable for all fitness levels, Surge sculpts a stronger, defined body while enhancing performance.

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The LAB.

Full Force

  • FUNCTIONAL STRENGTH & CIRCUIT TRAINING

  • Thursday + Saturday

  • 50 minute class

Join the fun with our weekly Functional Circuit class! This lively session is designed to boost your stamina and muscle endurance, helping you feel stronger and more energised for every workout. Perfect for all fitness levels, it’s a welcoming way to elevate your fitness journey!

Expect dumbbells, kettlebells, explosive movements, super sets and more for a strength session where you’ll feel the burn.

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The LAB.

Calisthenics

  • BODY WEIGHT STRENGTH

  • Monday + Wednesday + Thursday

  • 50 minute class

Boost your stamina and burn calories in The LAB’s bodyweight calisthenics classes. Small groups, expert coaching, and scalable workouts help all levels build strength, master skills like pull-ups and handstands, improve fitness, and achieve lasting results.

For a high-energy burn, join our Calisthenics Reps & Sets classes on Thursday, but we recommend also joining a few Calisthenics Skills and Strength sessions if you’re new to correct your form and get strong.

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The LAB.

Grit&Blitz (Outdoor class)

  • ENDURANCE | COMMUNITY | GRIT

  • Saturday

  • 50 minute class

Experience Grit&Blitz, an outdoor, park-based class for all levels combining hills, tempo, and intervals to boost endurance, speed, and mental strength. Expert coaches guide varied workouts to improve form in a supportive group. Run farther, get stronger, and join a vibrant community.

Note: This class is usually held in Brockwell Park (approx. 15min walk from our studio). We meet at the Brockwell Park Open Air Training Area next to the lido. Directions >

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FAQs

Explore quick answers to common questions, or contact us for more support.

What do I bring to class?

Please bring:

  • Comfortable gym clothes to sweat in.
  • Trainers/appropriate closed footwear.
  • A water bottle.
  • Sweat towel, plus a spare towel if you’re showering/changing (we do not supply towels).

For Grit&Blitz outdoor classes, please wear appropriate clothing for the weather.

Not interested in group classes? Learn more about our personal training packages or off-peak gym sessions available if you prefer to train on your own using our equipment.

Meet your coaches

Phil

HIIT | Functional | Circuit

Bruce

HIIT | Functional | Circuit
FACILITIES

Our studio features

Opened in October 2025, our new studio in the heart of Brixton features all-new equipment, strength training stations and more.

Equipment & facilities

  • Small group classes

    Max. 12-15 people per studio class

  • Personal training

    Available for 1-to-1 or private groups

  • Cardio machines

    Concept2 bikes, rowers & ski ergs

  • Barbells and plates

    1.25-25kg plates + various bars

  • Free weights to 30kg

    Dumbells, kettlebells & medicine balls

  • Adjustable benches

    Incline, decline, flat & vertical

  • Adjustable squat racks

    Barbell squats, benches & more

  • Pull-up & dip bars

    Including weight belts & bands

  • Recovery equipment

    Mats, bands, blocks & more

Amenities

  • Shower*

  • Changing room

  • Toilet

  • Air cooling

  • Free WiFi

*Towels are not provided. Please bring a reusable water bottle and towel with you for training and shower use. Lockers and lockable bike storage are not currently available.

Just a 7-minute walk from Brixton tube

We are proud to serve the local community. Our studio provides a private, focused environment away from the chaos of commercial gyms.

Whether you are local to Brixton or commuting from other parts of London, High Achievers Lab is easily accessible and ready to welcome you.

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How to get here

Get directions

Opening hours

Monday 6:00 am – 7:30 pm
Tuesday 6:00 am – 7:30 pm
Wednesday 6:00 am – 7:30 pm
Thursday 6:00 am – 8:30 pm
Friday 6:00 am – 5:00 pm
Saturday 6:00 am – 2:00 pm
Sunday 10:00 am – 2:00 pm

Off-peak gym hours vary. See our live timetable

High Achievers Lab Gym Brixton London Logo

High Achievers Lab

80 Atlantic Road
Brixton, London
SW9 8PX
United Kingdom

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 82 reviews  
 
  
 
 
 
 
 
  
 High Achievers Lab 
 
 
 High Achievers Lab
 Google star 1Google star 2Google star 3Google star 4Google star 5 
 5.082 Google reviews 
 
 
 
 
 
  
 
 
 
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 B Gibbons 
 
 
 
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What a great gym. I want to say thank you to all the people that are members of HAL, you allow me and all the over 55's that attend the classes on monday and wednesday to take part and have fun keeping fit. Our instructor Bruce is the best . Great service thank you.

Owner's reply
Thank you so much for this thoughtful review. We're delighted that you're enjoying the 55+ sessions and having fun while staying active. A special thank you as well for recognising the wider HAL community. One of the things we're most proud of is that the support of our members helps make these sessions possible, allowing us to provide opportunities for more people to stay active and connected. We'll be sure to pass your kind words on to everyone, they'll be delighted to hear them.
  
 
 
  
 
 
 
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 erica campbell 
 
 
 
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Since joining Im happy with my  progression and would have absolutely no hesitation in recommending this Gym to others.  Bruce is extremely knowledgeable and  sessions are fun and varied.  The equipment and facilities are clean, and the atmosphere motivating.

Owner's reply
Thank you for the fantastic review! It's great to hear you're happy with your progress and enjoying the sessions. We work hard to keep training varied, effective, and enjoyable, so it's lovely to hear that's been your experience. Thanks for your recommendation and for being part of the HAL community.
  
 
 
  
 
 
 
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 jyotsna arvind Bharadia profile picture 
 
 
 jyotsna arvind Bharadia 
 
 
 
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I have been going to this exercise class for a month and I have to say it's excellent. The teacher is patient and understanding treating everyone with respect. I never feel rushed or embarrassed. I would recommend this class to anyone including my family and friends.

Owner's reply
Thank you so much for your kind words. We're really pleased to hear you've had such a positive experience in your first month. Creating an environment where everyone feels comfortable, supported, and able to progress at their own pace is incredibly important to us. We really appreciate the recommendation and look forward to seeing you in class again soon.
  
 
 
  
 
 
 
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 patricia daley profile picture 
 
 
 patricia daley 
 
 
 
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In February, I joined The Lab Silver 50+ strength and conditioning class, not knowing how it would work out. Bruce has been an excellent trainer. He never pressures you to do any exercise that you find difficult, and all exercises are adapted if medical or mobility issues cause discomfort.
Thanks, Bruce. I am thoroughly enjoying your training sessions.
Pat

Owner's reply
Thank you so much for this lovely review, Ms Pat. We're really glad you took the leap and joined The Lab. Silver Strength 55+ sessions back in February! It's great to hear that you've felt supported and able to train in a way that works for you. Making exercise accessible, enjoyable, and adaptable to individual needs is exactly what we aim for. Thanks for being such a valued part of the group, and we look forward to many more sessions together!
  
 
 
  
 
 
 
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 Jacqueline Ho profile picture 
 
 
 Jacqueline Ho 
 
 
 
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Fun classes with really lovely staff. A good workout!

Owner's reply
Thank you so much! We're glad you're enjoying the classes and finding them both fun and challenging. Really appreciate the kind words about the team, we hope to see you back again soon!
  
 
 
  
 
 
 
 Posted on Google Google 
 
 Pauline Pinto profile picture 
 
 
 Pauline Pinto 
 
 
 
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I had never been to the gym before and everyone has been so encouraging and made me feel so welcome. Fun classes with a great sense of community. Thank you Bruce and Phil!

Owner's reply
Starting the gym for the first time can feel daunting, so we’re really happy to hear you’ve felt welcomed and supported from the beginning. The community side of things is a huge part of what we’re building here. Thanks so much for sharing your experience Pauline!
  
 
 
  
 
 
 
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 Jack Waltham profile picture 
 
 
 Jack Waltham 
 
 
 
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Lovely vibe here. Having never been to a gym as more of a runner/cyclist I’ve been made to feel very welcome and already seeing great progress with my core and strength training! Bruce is a legend!

Owner's reply
Thank you so much for this Jack! We love hearing from people coming from different training backgrounds and we’re really glad you’ve felt comfortable getting started with strength work at our gym. Amazing to hear you’re already noticing progress too!
  
 
 
  
 
 
 
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 Ting X profile picture 
 
 
 Ting X 
 
 
 
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The best gym and a welcome place for everyone. Phil and Bruce are encouraging and knowledgeable and there are a range of classes to help you reach any fitness goals.

Owner's reply
Thank you so much for this Ting, it really means a lot. We’re glad you’ve found the space welcoming and that the variety of classes is helping you work towards your goals. We also appreciate the kind words about the coaching too. It's great having you as part of the community!
  
 
 
  
 
 
 
 Posted on Google Google 
 
 Mimi Wold profile picture 
 
 
 Mimi Wold 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
 
I love this gym! It has a huge range of different classes throughout the week! Excellent coaches, Bruce and Phil are enthusiastic and supportive!
HAL has a real community feel to it, I highly recommend it!!!

Owner's reply
We’re really glad you’re enjoying the variety of classes and the overall feel of the gym. Bruce and Phil will appreciate the shoutout, they put a lot into every session. Great having you as part of the community, and thanks again for the recommendation!
  
 
 
  
 
 
 
 Posted on Google Google 
 
 Rachel profile picture 
 
 
 Rachel 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
 
So glad I decided to join HAL! I’ve been here for 3 months now and the progress I’ve made in that time has been insane! All thanks to the amazing coaches, Phil & Bruce  and their well-structured workouts.

I used to prefer going to the gym solo just to get a session in, but I genuinely enjoy coming to HAL. The community makes such a difference, everyone is so supportive, motivating, and encouraging, which makes working out feel so much more enjoyable. Honestly, couldn’t recommend HAL enough!

Owner's reply
Thank you so much for this Rachel, we really appreciate you sharing your experience. It’s great to hear how much progress you’ve made in just a few months, that’s all down to the work you’ve been putting in. We’re really glad you’re enjoying the shift from training solo to being part of the sessions, that sense of community makes a big difference, and it’s something we care a lot about. Thanks for the recommendation and for being part of HAL.

Rated 4.9/5 from 1,000+ reviews on ClassPass

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Mat pilates

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