Nico Menghini of Jarboom said organisers were “naturally disappointed” by Wiltshire Council’s decision.
He said they had “worked extensively to address the concerns raised during the 2025 process”, proposing fencing to protect wildlife and a “comprehensive noise management strategy”.
“We firmly believe these matters can be satisfactorily resolved,” he added.
Menghini said the team remained “confident” in their plans and were “continuing to work closely with all relevant parties to ensure the event is delivered safely, responsibly, and in line with all requirements”.
The appeal effectively puts the planning process on ice and allows the festival to continue, the Local Democracy Reporting Service said.
Wiltshire Council has been approached for comment.