Four fire engines and around 25 firefighters tackled a fire at a bike shed on Commercial Way in Southwark.
A garden shed and surrounding fencing were destroyed by the fire. There were no reports of any injuries.
Control Officers took the first of 25 calls at 0013 and mobilised crews from Old Kent Road, New Cross, Peckham and Greenwich fire stations to the scene. The incident was over for firefighters at 0045.
The cause of the fire is under investigation.