Welcome to Building Twentyone!

Building Twentyone is a non-profit empowering 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.

At Building Twentyone, we believe the habits that shape a lifetime are built before the age of 21. That’s why we’ve created a youth-driven center where trust is cultivated; hope is ignited; and character, influence and potential are intentionally developed — one experience, one relationship, one day at a time. Because in just 21 days, a habit can form— but in the right environment, a future can be transformed.

We serve 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.

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At Building Twentyone we offer programs that students just can’t get anywhere else! Each one falls under one of our Program Pillars:

These programs are all part of your students membership!  We offer homework help in several subjects including Math, English, Social Studies and Science. Our team of Community Volunteers as well as Michigan State University Interns are here to provide help in these subjects at all levels. Prepackaged healthy snacks are available to students each afternoon. You can check out those programs HERE.

We are a membership based organization which means that we do ask families to partner with us in a $49 per student yearly membership fee. More information can be found on our Register for Membership page

B21 Hours:

• Monday and Tuesday,   2:30 – 6:00pm
• Wednesdays,   CLOSED
• Thursday,    2:30 – 6:00pm
• Friday,   CLOSED except for Friday Night Live Events (Second Friday of the Month)
• As a general rule, because of our location, we follow Holt Public Schools traditional calendar as far as snow days and breaks.
• Subscribe to, or check the calendar at the bottom of our website for all hours and program times

Click Here to Schedule A Visit

Location: just 1.5 miles south of Holt:

• 1288 N. Cedar, Mason, MI  48854