Building 21 Philadelphia is the Founding High School of the Building 21 Network as well as a non-criteria high school with the School District of Philadelphia.
Announcements & Important Information
Back to School Night
Please join us for Back to School Night on Thursday, September 18th 5:00 pm to 7:00 pm
School Schedule
Monday – Thursday 8:15 to 3:15
Friday 8:15 to 1:15
High School Selection is now OPEN!
We would love to meet you! Please join us for one of the opportunities below and see if Building 21 is the right school for you.
High School Fair – Saturday, September 20th 10:00 am to 4 pm 
Shadow Days – September 25th and October 9th 8:30 am to 12:30 pm
Virtual Open House (Zoom) – September 25th 6:00 to 7:00 pm
In Person Open House (6501 Limekiln Ave) – October 10th 4 pm to 5 pm
CLICK HERE to sign up for Shadowing Day and Open House Events
Shout Outs
Building 21 has been selected as part of a National Network to reimagine high school. We are so proud to be part of the Carnegie Foundation Future of High School Network and look forward to working with teachers, staff, parents and students to create new possibilities.