London firefighters were called to a working fire on Oxford Street early Tuesday morning.
The fire broke out around 7:35 a.m. at a residence at 654 Oxford St. E.
Police and fire officials are now investigating the cause of the blaze.
The home was reportedly being renovated, and no one was inside when the fire broke out.
The damage is estimated at around $80,000.
London police say Oxford was shut down between Adelaide Street and Elliott Street as fire crews worked, but it has since been reopened.
Anyone with information is asked to call the London Police Service at 519-661-5670 or Crime Stoppers at 1-800-222-TIPS.