Peckham Levels is closed until further notice after a fire broke out on Monday in an adjacent car park.
Two hundred people were evacuated from the venue after part of the ground-floor car park caught fire.
Four fire engines and around 25 firefighters were at the scene on Cerise Road from 3.53pm until the blaze was brought under control by 5.16pm.
One person was treated by paramedics and taken to hospital. There were no further reports of any injuries.
On Monday, a Peckham Levels spokesperson issued the following statement: “Today, there was a small fire in the car-park next to Peckham Levels.
“The fire was external to the building and was quickly extinguished by the local fire brigade.
“The team at Peckham Levels did a fantastic job, using their emergency procedures.
“The building was evacuated quickly and there are no injuries or casualties to report.
“No significant damage to the building has been reported.
“The site is currently closed as a safety measure whilst inspections are conducted.
“It will re-open as soon as it is safe to do so.”
Witnesses initially reported hearing an “explosion”.
Police told the News that the fire is believed to have been started by a mechanical fault in a parked car, though investigations into the cause are still taking place.