Flames could be seen shooting from a building at the Back Creek Golf Club in Middletown Wednesday afternoon.
Former Eagles QB Ron Jaworski, who manages the club, was there when it happened. He said the building that burned was vacant.
It took firefighters more than an hour to bring it under control.
No injuries were reported.
The club is postponing its one-year anniversary concert planned for Thursday.
Read a full statement released by Ron Jaworski Golf Management:
"Earlier today, we experienced a large structural fire to our outing pavilion. First and foremost, we are fortunate that no one was injured but we are saddened by the unexpected event.
We would like to extend our heartfelt thanks to the first responders who acted promptly and effectively during this incident. Their professionalism and bravery were instrumental in ensuring the safety of all individuals involved as well as preventing further spread of the fire. Thank you to the firefighters from Newark, Smyrna, Townsend, Christiana, Odessa, Port Penn, Middletown, Delaware City, New Castle, Delaware State Fire Marshal's Office, and the New Castle County EMS
Our team has begun to take all necessary measures to ensure that our operations continue smoothly tomorrow.
The Grille will be closed tomorrow, June 20th and our one-year anniversary concert will be postponed. However, golf operations will go on according to schedule.
We appreciate your understanding and support during this time."