Due to the program's popularity and student population, the school was authorized, via an approved April 2009 referendum, to build an 18,000 seat stadium (Allen Eagle Stadium) for the team.
 The stadium (which cost nearly $60 million) opened for the 2012 football season.
It is the fifth largest high school stadium in the state, but the largest designed for the use of only one team.
The new facility houses a weight room, wrestling practice facility, and indoor golfing facility.

On February 27, 2014, the stadium was closed due to cracking in concrete making it unsafe to use.
The 2014 varsity football season played every game on the road, and still managed to go undefeated and win their third consecutive title earning the nickname "Road Warriors" by the local media.

After about $10 million in structural and design repairs by Pogue Construction and PBK (neither the district nor the Allen citizens having to pay anything extra), Allen's stadium was officially reopened on June 5, 2015, for its Class of 2015 graduation and allowed the varsity football team to once again host home games.
Due to the program's popularity and student population, the school was authorized, via an approved April 2009 referendum, to build an 18,000 seat stadium (Allen Eagle Stadium) for the team.  The stadium (which cost nearly $60 million) opened for the 2012 football season. It is the fifth largest high school stadium in the state, but the largest designed for the use of only one team. The new facility houses a weight room, wrestling practice facility, and indoor golfing facility.
On February 27, 2014, the stadium was closed due to cracking in concrete making it unsafe to use. The 2014 varsity football season played every game on the road, and still managed to go undefeated and win their third consecutive title earning the nickname "Road Warriors" by the local media.
After about $10 million in structural and design repairs by Pogue Construction and PBK (neither the district nor the Allen citizens having to pay anything extra), Allen's stadium was officially reopened on June 5, 2015, for its Class of 2015 graduation and allowed the varsity football team to once again host home games.
Allen High School (Texas)