Four fire engines and around 25 firefighters were called to a fire at a derelict pavilion at a park on Goodmayes Lane in Ilford.
A single-storey pavilion was destroyed by the blaze. There were no reports of any injuries.
The Brigade’s 999 Control Officers took 11 calls to the fire.
The Brigade was called at 2307 and the fire was under control by 0053. Fire crews from Ilford and Dagenham fire stations attended the scene.
The cause of the fire is under investigation.