Building Twentyone

Building Twentyone Contact information, map and directions, contact form, opening hours, services, ratings, photos, videos and announcements from Building Twentyone, Nonprofit Organization, 1288 N Cedar Road, Mason, MI.

Building Twentyone empowers teens to discover passion and purpose by providing a safe, engaging space where they can grow in leadership, life skills and community connection before the age of 21. With after school drop-in space equipped with laptops, foosball, ping pong, game systems and programs designed by and for teens, we are passionate about creating a fun atmosphere with hands on learning and experiences set in safe and creative environment.

Did you know we offer Homeschool Ninja Classes?!Calling all our homeschool friends! 🥳 Our Homeschool Ninja Class is the ...
09/02/2026

Did you know we offer Homeschool Ninja Classes?!

Calling all our homeschool friends! 🥳 Our Homeschool Ninja Class is the perfect way for your kiddos to get active, build strength and confidence, and have a TON of fun while doing it!

Homeschool Ninja Classes:
📅 Fridays
⏰ 2:00–2:55 PM
👧 Ages 6–18
📚 8-week session

And guess what?! Classes start THIS FRIDAY, September 4th! 🎉
Make sure to enroll your ninja today👇
https://buildingtwentyone.org/ninja/ninja-enroll/

After School Open Space starts in ONE WEEK!!!🚨🤩🎉We’re more than a teen center. Building Twentyone is mid-Michigan’syouth...
09/01/2026

After School Open Space starts in ONE WEEK!!!🚨🤩🎉

We’re more than a teen center. Building Twentyone is mid-Michigan’s
youth hub for real-life learning, emotional support and creative
leadership — where students, families and communities grow together.

Real skills. Real fun. Real Impact.
Enroll your 6th - 12th grade student at the link below for just $65 for the entire school year!👇
https://buildingtwentyone.org/membership/

Join us Tuesday, September 8th, for a special OPEN HOUSE from 5-6pm!!🎉This is a great opportunity to meet our team, see ...
08/27/2026

Join us Tuesday, September 8th, for a special OPEN HOUSE from 5-6pm!!🎉

This is a great opportunity to meet our team, see our facility, register for membership, and sign up for programs.

We can't wait to meet you! 🤩
No registration or sign up needed.​​​​​​​

Address:
1288 N. Cedar
Mason, MI. 48854

🚨 Ninja Classes start next Tuesday, September 1st! 🚨Calling all ninjas ages 6–18! 🥷Led by our SPOTTED-certified coaches,...
08/24/2026

🚨 Ninja Classes start next Tuesday, September 1st! 🚨

Calling all ninjas ages 6–18! 🥷
Led by our SPOTTED-certified coaches, these 8-week classes are designed to help students build new skills, improve agility, push their limits, learn to embrace challenges, and—most importantly—learn how to fail well and keep going!
Give your student the opportunity to grow stronger, more confident, and more resilient.

Sign up for our 8-week Ninja Classes today:
https://buildingtwentyone.org/ninja/ninja-enroll/

08/21/2026

Real skills. Real fun. Real impact.

Looking for a place where your teen can feel seen, connected, and supported? Or maybe you’re searching for a fun way to keep your 6–18-year-old active while learning new skills?

From our After School Teen Open Space to our Ninja Gym, Building Twentyone has something for kids and teens of all interests. We’re proud to serve the greater Lansing area and provide a space where young people can stay active, build confidence, make connections, and have fun.

Come check out our space and learn more today!
Schedule a tour at the link below.👇
https://forms.gle/86yYDMUjoKY2ZPcG8

✨OPENING DAY!!✨We open our doors for After School Open Space on Tuesday, September 8th!!Calling all middle and high scho...
08/19/2026

✨OPENING DAY!!✨

We open our doors for After School Open Space on Tuesday, September 8th!!

Calling all middle and high school students — grades 6 through 12 —
from across the Greater Lansing area who are open to growth, eager for
connection and ready to explore their potential in a safe, supportive and
youth-driven space. Our teens come from diverse backgrounds but share a desire to belong, be seen and become who they’re meant to be.

Enroll your teen today👇
https://buildingtwentyone.org/membership/

Building Ninja enrollment for the fall is OPEN!!🚨🤩📣We are offering classes, open gym memberships, and more!Your student ...
08/17/2026

Building Ninja enrollment for the fall is OPEN!!🚨🤩📣

We are offering classes, open gym memberships, and more!
Your student will learn new abilities, how to tackle obstacles, and how to get back up and try again. There's also opportunity to make new friends while being active.

Think Building Ninja might be for your 6-18 year old?
Click the link below for more information & to enroll today👇
https://buildingtwentyone.org/ninja/ninja-enroll/

FREE EVENT TONIGHT!!!🎉Tonight is the Big Top Bash - a Friday Night Live event at Building Twentyone from 7-10PM! We'll h...
08/14/2026

FREE EVENT TONIGHT!!!🎉

Tonight is the Big Top Bash - a Friday Night Live event at Building Twentyone from 7-10PM! We'll have tons of free food, games, and more fun surprises. If you're in 6th-12th grade, bring your friends, or come alone and meet some new ones. There is non membership or registration needed. Just show up!

We can't wait to see you tonight!🤩

08/11/2026

Quick glimpse into our Ninja Camps for 2026!!👀

What an absolute blast. 💥
Already missing camp? No worries. We’ve got fun for your student all year long! Enrollment for Fall Classes is OPEN!!

Ninja Camp RECAP!!🥷☀️🎉We had an incredible time with these students. They learned how to tackle obstacles, how to get u...
08/11/2026

Ninja Camp RECAP!!🥷☀️🎉

We had an incredible time with these students. They learned how to tackle obstacles, how to get up and try again, and how to support others while they learn too. We are already looking forward to next year!
​​​​​​​
Thank you for allowing Building Ninja to be apart of your students summer.​​​​​​​

Address

1288 N Cedar Road
Mason, MI
48854

Opening Hours

Monday 2:30pm - 6pm
Tuesday 2:30pm - 6pm
Thursday 2:30pm - 6pm

Telephone

+15178895103

Website

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