Four fire engines and around 25 firefighters were called to a fire on Church Road in Enfield.
A range of single-storey sheds and some vegetation were destroyed by the fire. There were no reports of any injuries.
The Brigade's 999 Control Officer's received 13 calls to the blaze.
The Brigade was called at 0034 and the fire was under control by 0140. Fire crews from Enfield, Edmonton, Finchley and Walthamstow fire stations attended the scene.
The cause of the fire is under investigation.