Six fire engines and around 40 firefighters were called to reports of grass alight on the junction between Marigold Road and Watermead Way in Tottenham.
Around four hectares of grass and scrubland was damaged by fire. There were no reports of any injuries.
Station Commander Paul Eastland, who was at the scene said: "Crews worked incredibly hard to prevent the fire from spreading to a nearby electrical sub station.
“When the ground is extremely dry, grassland and parks will burn quickly when exposed to even the smallest of sparks.
"If you see a grass fire, don't attempt to put it out yourself as grass fires can travel very quickly and change direction without warning. Call the Brigade and let us know where the fire is."
The Brigade was called at 1741 and the fire was under control by 1850. Fire crews from Tottenham, Walthamstow, Stoke Newington and Edmonton fire stations attended the scene.
The cause of the fire is under investigation.