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Summer Programs

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Summer Programs

Find out more

Summer Programs

Find out more

Summer Programs

Find out more

Join us for Summer Hangout Days!

✨NEW✨ INTRODUCING: Summer Hangout Days – July 7th, July 21st, August 11th (1-5pm at Building Twentyone). 

  • Summer can sometimes seem too long, and often our students go all summer without seeing each other. So, in addition to our summer programs, we wanted to open up our building for a few days for students to connect with each other. Students can hangout, play games, enjoy some snacks, and more! 
  • These hangout days are totally FREE! However, we require each student to be a summer member. Please follow the steps above to enroll. 
  • July 21st we will be going to Hawk Island. So, please bring your bathing suit and sunscreen!

For 6th-12th grade students in the 2025/2026 school year


Frequently Asked Questions:

Do I have to be a member to participate in summer programs?

  • Yes! Please do so on our website. Membership sign up is FREE. Sign up for each individual day you wish to attend.

Is there transportation to Building 21 for summer programs?

  • Each member must find a ride to our facility. Building Twentyone will provide transportation to any off campus destinations.

What if I can’t get to B21 to pick up my student by 5:00pm?

  • All students must be picked up by 5:00pm. If you cannot pick them up, you can arrange for transportation home with Redi-Ride at cata.org.

Do I need to register each student individually?

  • Yes. Please do so on the parent portal.

Is food provided?

  • Nutritious snacks will be provided. Our snack shop will also be open to purchase additional snacks and drinks.

What should my student bring?

  • Your student should bring comfortable shoes, respectful attire towards themselves and others for possible indoor and outdoor activities, a water bottle, etc.

Membership Scholarship Information

Building Twentyone seeks to provide programs at little to no cost to participating students. The reality is, there is a price associated with providing trained staff, supplies, and a facility to accommodate the increasing number of teens enjoying our programs. Scholarships are available to students that apply and qualify.

Click HERE for the Scholarship Application.

If you have other hardships keeping you from signing up for our programs, please let us know through our contact form. We’re happy to help!

Stay Connected

517-889-5103

1288 N Cedar Rd Mason, MI 48854