Four fire engines and around 25 firefighters attended a fire on Bobby Moore Way, near the North Circular Road, in Friern Barnet.
A range of wooden outbuildings situated on an allotment site were damaged by fire. There were no reports of any injuries.
Due to the remote location of the fire, a water relay system was required as part of firefighting operations. Appliances were stationed between the incident site and the nearest water hydrant, and then connected together by hose. This allowed crews to pump a constant supply of water to the scene of the fire.
The Brigade received the first of 33 calls at 2257 and Control Officers mobilised crews from Finchley and Hornsey fire stations to the scene. The fire was extinguished by 0012.