Three luxury treehouses built in the Ještěd Nature Park near Křižany, Czech Republic, are at risk of demolition after being constructed without proper building permits and environmental approvals. The Czech Environmental Inspection Authority has already issued fines for the violations. The Osečná building authority has initiated proceedings to order the removal of the structures. The treehouses, which include viewing platforms, were built without undergoing the required building process or receiving consent from nature conservation authorities. This has led to concerns regarding potential environmental impact and adherence to local regulations. Authorities discovered the unauthorized construction and are now enforcing building codes. The owners of the treehouses now face the possibility of complete removal of the buildings.