The 12 Costa Mesa

Information about The 12 Costa Mesa
Opening hours
- Monday: 5:00 AM – 9:00 PM
- Tuesday: 5:00 AM – 9:00 PM
- Wednesday: 5:00 AM – 9:00 PM
- Thursday: 5:00 AM – 9:00 PM
- Friday: 5:00 AM – 8:00 PM
- Saturday: 7:00 AM – 5:00 PM
- Sunday: 7:00 AM – 5:00 PM
The 12 Costa Mesa: Opinions

Fantastic experience: Great HIIT classes, with varied schedules and instructors that challenge you. I started about a year ago, and call me crazy but I look forward to working out at 5am each weekday. The facilities are clean, and they offer amenities including towel service. Staff is friendly and helpful, when needed. Overall great place to kept fit and healthy.
Fantastic experience: Jointing the 12 has been the best decision my husband and I ever made. We have transformed our body and our minds. Learned about the importance of Nutrition. The trainers are beyond amazing. 9am has become our family. Our Trainer Brooke creates the most positive, fun, and encouraging environment. We look forward to class everyday. She is the best.
Fantastic experience: I cannot say enough great things about this place! As a long time member it’s where I’ve seen the most consistent results fitness wise. The classes are structured in such a way that it takes all of the guess work out of well-rounded training. Jared has become my favorite morning person as he is motivating, knowledgeable and funny before 5am. Thank you!!!
Fantastic experience: The 12 is the best gym I have ever been to! The classes are so much fun, lively music, and creative workouts! But most of all, the trainers and community are truly incredible. So encouraging and such a positive healthy culture that makes you excited to workout every day! Couldn’t recommend this gym more.
Fantastic experience: The12 is AMAZING! Their group classes have changed my morning workout routine. Jared is the best trainer. He teaches the 5am and 6:20am classes and is always full of energy and inspiration, not to mention is music is always on point. The front desk staff is lovely and the vibe of the whole gym always sets a positive mood for the day!
Fantastic experience: The 12 is THE BEST spot for all things health, wellness, and fitness. This place has everything you could need from a gym space, group training room, personal training 1:1, and the best health bar ever!!! All the coaches are incredible and work hard to make sure you have the best workout. Brooke was one of the first instructors I ever took class with and is someone you want around you to make you smile, motivate you, and makes an hour class seem to fly by If you are thinking of taking a class, GO FOR IT and book with Brooke - you won’t regret it!
Fantastic experience: The 12 is the best gym in OC! I go at least 5 days a week almost always to the 9 am taught by Brooke and she is an amazing trainer! It’s no wonder why she’s the lead trainer and in charge of coaching the new and upcoming trainers at The 12, she knows her stuff and she brings the energy every single time!
Fantastic experience: I have been coming to The 12 for the past two months and I love it. It's been years since I've actually stuck to a workout routine, but The 12 makes it easy. There are people of all different skill levels, and I have always felt so comfortable working out there. More importantly, Jared is one of the group class trainers and he is amazing. He is constantly helping with correcting form, and does a great job with hyping up the class. My favorite quality in Jared is that he infuses a sense of community into every class he teaches. I love being a member at The 12, and I'm grateful for all of the wonderful people there!
Fantastic experience: I only have great things to say about the 12! All the trainers there are honestly amazing and make class so much fun. My two personal faves are Jared and Brooke. 9:00am with Brooke quickly became a class that I never want to miss, it actually has become more of a family then workout class. It’s never a chore showing up. Thank you to everyone at the 12! I love you all
Fantastic experience: I have loved every class that is coached by Dana! She brings so much energy and encouragement and makes working out a fun experience. One thing that I love is how much Dana focuses on good form and making sure that everyone is doing it correctly so we don’t get injured.
Fantastic experience: The 12 is not just a gym, it’s a community filled with positive like minded people. I’ve been coming to The 12 for close to 3 years now and it has changed my life for the better. I used to never get excited to go to the gym, but ever since joining The 12 I’ve been highly motivated to go frequently because of the community and my trainer Dana. I’m close to hitting 500 classes at The 12 and most of my classes has been with Dana. I keep coming back to Dana because not only is she a great human and motivator, but she genuinely cares about your health and your fitness progress. I can’t thank her enough for her daily inspiration to be better. Needless to say I love The 12 and if you want a great workout with great people give The 12 a shot, you won’t be disappointed.
Fantastic experience: The 12 is AMAZING - made so much more so because of the people it hires and the environment it creates. It’s become an escape to work on more than physical strength and I loveeee it. Dana is a boss on the mic and knows how to bring the perfect amount of toughness and encouragement to get you through class. She (and her music) are seriously the only things that can rally our 4 pm crew. See you soon team;)
Fantastic experience: Absolutely love the 12 and the community of people I get to work out with everyday! I love the thoughtfully planned workouts, I can just show-up and know I’m gonna get a killer workout in. HUGE shout out to my trainer Dana! She is dedicated, inspiring, and so positive. You can’t be mad leaving a workout from the 12 with Dana!!!
Fantastic experience: Jared is awesome…he’s an amazing trainer and person! He interacts with all the members and makes you feel so welcome in his class. The 12 has been a great gym to be part of and I truly enjoy the 5 a.m. family he’s created there!
Fantastic experience: The classes at the 12 are challenging with a new set of functional movement exercises every day. I attend the Monday through Thursday classes and have seen great improvement in my physical and mental wellbeing, I feel great. My goal was to get my strength to a level that would allow me to surf armature surfing competitions at a high level…..I want to win. The classes have exceeded my expectations and the results have been noticed by my peers. But most importantly my wife has really noticed and she can’t keep her hands off of me. I’d also like to mention that the staff are very friendly. My trainer Dana is outstanding. She keeps me motivated and will let me know if my form is wrong. This is one of the most important aspects for me. I don’t want to get hurt. She keeps the classes fun and challenging at the same time. Dana rocks
Fantastic experience: Great gym. Great community. Awesome trainers! The workouts are fun and challenging! Jared's (6:20am class - Costa Mesa) classes are engaging and really effective. He creates an inclusive environment, despite your fitness level, and makes getting up super early well worth it. His training style is impactful both inside and outside of the gym, and his music playlist is always thoughtful and energetic.
Fantastic experience: Dana is one of the most incredible humans and trainers I have ever met. She is so motivating and encouraging. Her energy, smile and vibes are contagious. She spreads joy and happiness wherever she goes! I love how she supports her whole team and everyone who walks through the door!!!! ♥️♥️♥️
Fantastic experience: LOVE THESE WORKOUTS! I go at 5 AM and I have noticed such a change in my fitness level. Jared, is by far my favorite trainer, with his crazy amount of energy and kick a** playlist. Love the group of girls I work out with in the morning. Have nothing but great things to say about this gym and the classes!
Fantastic experience: I have been going to the 12 for a few years and nothing compares to it. Jared and Brooke have been my trainers for almost the whole time and their energy is unmatched. Jared’s 6:20 class music and the whole room always bring it. The layout of the workouts always switch it up and keep the workout fun!
Fantastic experience: I have been coming to the 12 for about 3 months now and am not planning on stopping! Their classes are done in a way to keep your heart rate up, but also allow you to challenge yourself mentally and physically. The group structure gives you a sense of motivation and competition. As a competitive person it helps me to get to that next level! Jared is by far my favorite trainer! His music is on-point and he really fires everyone up! It’s also kind of crazy how they know who you are; all of the staff is very intentional.
Fantastic experience: Jared is the best trainer! He takes the time to assist and challenge each member to fit their goals and is always willing to stay after to discuss and modify. He also takes the time to personally know and address every person in class. He really cares about the members and makes them friends.
Fantastic experience: The classes at the 12 are the best workout I have ever done. I look forward to class and I feel great. I do the 5am class with Jared, he is such a great trainer and motivator, it's almost easy getting up so early because I know I want to be there!
Fantastic experience: Ive been going to this gym now for over a year and never in my life have I loved working out so much! This is more than a gym, this is a family and I’m so thankful to be a part of it! All the trainers are truly amazing and encouraging but if I had to pick… Dana is the best!!!
Fantastic experience: DANA- my fav!!, Nichole, Brooke are amazing women that has uplifted my life. All the other trainers are great as well! Highly recommend anyone looking for a new beginning, purpose and change in their life! The hard part is getting started but it really gets easier once you keep showing up. I look forward to coming here every day. Thank you 12 trainers so much <3
Fantastic experience: I recently moved to the area and needed a gym to workout at. I tried many different places but The 12 has been my favorite!! I love this place so much. The staff are welcoming and friendly, the facility is always clean and the equipment is really nice. The trainers are incredible. They truly care about each individual and work hard to make sure we are all getting in killer workouts. Their high energy and positive attitudes are reasons why I love this place so much. A big shoutout and thanks to my trainer Dana!! She’s absolutely amazing! Couldn’t imagine working out anywhere else :)
Fantastic experience: I've been coming here for about 2 years now and have seen a noticeable change in myself, both physically and mentally. Everyone is very welcoming and the trainers go out of their way to make you feel seen. I typically go to Dana's classes for the amazing energy and intensity that she brings to each class.
Fantastic experience: I have been attending “The 12”for five years now the first 2 1/2 years were in Huntington Beach. Due to Covid, the Huntington Beach gym Unfortunately got closed. I was devastated so we’re so many others. I loved it so much that I decided to make the drive 30 min each way from home to Costa Mesa to follow Brooke Downs. Brooke Is truly a one-of-a-kind. She exudes so much vibrant, positive, energy! She is always making you laugh, motivating and encouraging you! She truly cares about every single person that walks into her class and makes you feel comfortable. She opens her heart and has the ability to connect with every single person giving them a safe haven to come to every day. No matter what you’re facing she will be there to help guide and lead you to a better you!!!! If you have not tried the 12 in Costa Mesa wait no longer, go check out Brooke’s class at 9am or all the other amazing instructors at another time that suits your schedule. You’ll be so glad you did!!!
Fantastic experience: The 12 is my happy place. I’ve made friends, gained confidence, and improved my mental health all from what…going to the gym! Brooke and Dana are the absolute BEST always brining the best energy and positive vibes day after day.
Fantastic experience: The 12 has become part of my daily routine physically, mentally, and spiritually! Amazing workout combined with good vibes to set you up for your day! Brooke can always put a smile on my face and is truly a one of a kind trainer and group instructor!
Fantastic experience: After 4 1/2 years as a member I can confidently say I would not be who I am without The 12. This gym is home and these people are family. I’ve been so lucky to have formed such strong bonds with so many trainers and members over the years and I really couldn’t see my life without this community. Jared is a top tier trainer. He makes every class feel different than the last. He knows the perfect balance of having fun and training hard. Jared truly cares about his members and their experience in class and puts his all into every class he teaches. For me- the 12 wouldn’t be the 12 without him. Spoiler alert: be prepared to dance and yell for 60 minutes with Jared right along side you.
Fantastic experience: Highest of recommendations taking a class for Jared! He raises the bar (pun intended) every class, keeps people motivated and has a clear passion for what he does. His dedication to the 12 amazes me, even more so that ever morning at 5am the room is set up, has a great attitude and I have never seen him late. Great dude with a heart of gold.
Fantastic experience: Been going to The 12 for years, it’s my happy place!! It’s the best way to start my day. Wake up early and go take my favorite trainer Jared’s class! Jared is always there to make working out fun, and VERY challenging. He truly cares about fitness and your goals.
Fantastic experience: I’ve been coming to The 12 for 4 years now and I’m in the best shape of my life. They have provided me the structure and positive atmosphere needed to feel motivated and excited about my workouts. The trainers are incredible mentors and friends. I love working out with Dana, Brooke, and Justin. I’ve never found another gym that compares!
Fantastic experience: I’ve tried a couple local gyms out, and none of them compare to the 12 They care about your form and technique more than other group training gyms (which helps prevent injuries) and keeps you progressing toward your goals. The community is spectacular. Lots of like minded people to build relationships with ⚡️ And of course, the trainers. Brooke + Dana are my favorite, but all of them are amazing!!
Fantastic experience: One of the best gyms in Orange County. They have some incredible trainers and I absolutely LOVE Dana’s class. She is such a genuine person and truly takes an interest in everyone that walks through the doors. Her energy is electric and she truly pushes you to perform your best in class. I have to also give a shout-out to all the members as well.. everyone is very approachable and are truly great teammates nonetheless. Love you Miss burpee queen
Fantastic experience: I have been a member at the 12 for about 3 and a half years and I have never loved a gym more. The environment, the trainers, the people who attend classes - it’s just a place that you want to be. Jared is the only person I will happily wake up at 4:30am for. His knowledge of fitness, energy and genuine kindness is everything you can ask for in a trainer - he just makes you want to show up for yourself. Do yourself a favor and come to a class.
Fantastic experience: Love the 12 so much! The trainers, staff, classes and the facilities are all amazing! I have been going to the 4pm class for over 2 years with Dana and her and the other people in class have all become like family! Dana is the absolute best, and pushes me every day to be better, which is exactly what I need after a full day of work. Cannot recommend this gym enough. 10/10
Fantastic experience: I can’t say enough about The 12. What I will say is that this place changed my life. From struggling to get to the gym solo to getting excited to sign up every morning knowing that I am going to see some amazing people who are gonna push me and support me for the ENTIRE workout. All under the leadership of the best trainer, Brooke Downs. Not only is she beyond funny and perfect at getting a group hyped, she understands the “why” of a workout and movement verses just telling us what to do. She is very educated not only in the gym but when it comes to nutrition and supplements and has helped me so much when applying to my own journey. She cares about what we can take away from each workout and is always looking out for our form and educates those who need to modify an exercise when necessary. Brooke is always on. No matter what her or your day looks like she finds a way to bring all the energy and bring you out of any funk you’re in and make you laugh or dance. She is inclusive to all members new and old and you can see her dedication and passion for what she does and you know it’s not just a “job” to her. In the short time of 10 months, this has become my family, it is way more than just a gym, and this is forever.
Fantastic experience: Been coming here for about 5 months now and have been loving it! All of their instructors are amazing! I gotta shout out Justin for always looking out and adjusting my posture! He’s always hyping us up and dancing us through, especially on those tough Friday PM classes! Appreciate you!
Fantastic experience: I love this gym so much! I hadn’t worked out consistently for over two years before finding the 12. The atmosphere and community here are unmatched. All the trainers are wonderful. I’ve been to other gyms where the trainers don’t focus on correcting form, but that’s not the case here. Katie and Nichole are so encouraging throughout the workout and really make you push yourself. Justin has such great energy and the best music! I’m so happy to have found this place.
Fantastic experience: I have been coming to the 12 almost 2 months now and I am HOOKED!! I go to 9am with Brooke and she makes my day EVERYDAY!! With her positive and high energy, humor, smile, stories….she is the ULTIMATE cheerleader and hype woman! Highly recommend the gym to all and especially her class! Sign up early because she fills up fast!!
Fantastic experience: The 12 always brings challenging workouts to the table and really helped elevate myself as an athlete. Trainers really care about each and every person that shows up. One trainer in particular, Dana, brings energy and such a positive attitude to every workout class which really makes you motivated to bring it. She is such a joy of a trainer and if you haven’t taken a class definitely stop in one of her afternoon classes!
Fantastic experience: I’ve done some serious studio hopping.. The 12 has definitely won my heart!! I love everything about them. The trainers are AMAZING! They know each person by name and they greet you with the smile and a high-five the moment you walk in. They even notice if you’ve been away for awhile :) DANA DANA DANA ! This trainer is the most encouraging human being on this planet! Her energy is very contagious. So if you want to walk out the door feeling amazing as ever… I dare you to take her class! You won’t regret it.
Fantastic experience: The community at the 12th is absolutely incredible! The support & love from the trainers are what makes this place and the incredible workouts! Definitely get connected and take Brooke’s class! There’s always high energy and fun filled packed workouts 5/5 recommend
Fantastic experience: Jared is awesome! Getting up and getting it done is easy at the 12. In and out before 6 am leaves plenty of time to get the kids ready for school and leaves my day free for everything else. Jared is up beat, super knowledgeable and basically makes waking up early to exercise not suck. If getting in early doesn’t happen, the other trainers are also excellent. I’ve taken classes with Brooke, Katie, Dana and Tyler and none of them disappoint. All can answer your questions regarding training, recovery, modifications, etc. In addition, the facilities are always clean, maintained, and towels are provided (which is a nice perk).
Fantastic experience: This gym changed my life the moment I walked in the door !! They are family !! Every. Single. One. Of. Them !! Especially Brooklyn Downs !! From the moment Brooke ran up to me in class to introduce herself as the trainer/training director I said to myself, “yup this is my new home.” And the rest is history !! Brooke is honestly the best person I know and on top of that she is a dang good trainer who cares wholeheartedly about people and it shows !!!! She will work with you on your form and help guide you through your own individual fitness journey !! Brooke makes classes interactive and makes everyone feel included !! Overall the family dynamic, the love, and the energy at The 12 is what keeps me coming back every single day !! Every time I leave the place I can’t wait to go back the next day. Working out and staying fit is just a bonus ! If you’re looking for a gym that makes you feel supported and never EVER judged then The 12 is that place !!!! I PROMISE YOU !!! It can change your life too !!
Fantastic experience: Jared is the only reason we wake up at 4am to take his 5am class. He is a knowledgeable trainer, full of energy & plays great music every day which makes for a fun class. We love the 5am community & we have made many friends. Do yourself a favor and check it out. You won’t regret it. First class is free!! #team5am
Fantastic experience: Great gym, started coming here for the training classes after moving to Newport, Dana has been the best motivator/trainer! Even when having a bad day showing up to classes she changes your mood instantly! Highly recommend coming here and taking a class with Dana!!
Fantastic experience: I've been going to the 12 for 2 months now. It's instantly addicting. The trainers all set the tone and keep it super positive and very high energy. The workouts all stay fresh and the music is on point. All the people at the gym are friendly, it's just plain a really nice environment to be in. I've done all types of exercise all over the world and can tell you that The 12 is truly a special place.
Fantastic experience: I go to their classes every morning and Jared is absolutely amazing! Extremely clean facility and love the amenities they make available to their members (girls have hair ties, female items, spray deodorant etc). I do not work out in the gym but the equipment that they have for the weight training area is definitely on the higher end so if you are into weightlifting it’s a great place and it doesn’t seem typically crowded during peak hours even. All the trainers classes I have taken are phenomenal and I love that I can book my classes conveniently in the app. Highly recommend
Fantastic experience: Living in OC you come to realize there is a gym in every corner. Something needs to stand out or else people walk to the next one. I recently tried The 12 gym. The first one i attended was an early morning class by John Wayne Airport. The coach was a young lady by the name of Nicole. She has been, by far, the most energetic, passionate, and professional coach/trainer i have come across. Nicole cared about my form and how i was enjoying the class. I found out that the 12 actually had a place closer to me by Newport Blvd. A friend of mine invited me to take a morning class there. I told her that nothing topped the one i was at. She stated that there was a new coach there by the name of Nicole as well. What were the chances that this Rockstar would be there as well. Low and behold, it was her. Some how she was handling the morning class at this site as well. How impressive it was to see that she still had the super sonic energy and attitude to not only motivate me but the rest of the populous. The 12 Gym really stand aside from the hundreds of gyms in the area. For the simplicity of having amazing coaches like Nicole. Thank you 12 for the amazing recruiting. If you ever are serious about your fitness goals and want a kick in the pants and the soul. Come take Coach Nicole's class. Where ever this superstar might be.
Fantastic experience: Updated review here! Just finished the 6 week challenge and it was amazing! The resources offered, comradery of the members, and overall accountability was incredible. Also the trainers continue to be awesome! Been a member for going on 6 years I believe? I can't recommend this place enough!!
Fantastic experience: This is the first boot camp class I’ve been excited to go to. Everyone is super friendly and supportive!! So glad I was recommended to you guys!!
Fantastic experience: Highly recommended! The place is really nice and clean. Everyone is very friendly and welcoming. The group classes are awesome. The teachers are very energetic and will push you to do your best. I love the atmosphere of this place!
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