Windsor fire officials say an early morning blaze in the 1800 block of Algonquin Street, south of Tecumseh Road West, is considered suspicious.
Crews responded just after 4:30 a.m. Saturday with reports of thick black smoke coming from a garage behind a house.
Damage is estimated at approximately $150,000.
Fire crews say the occupant was not at home at the time of the fire, and no injuries were reported.
The fire originated in the garage, fire crews add.
The fire investigator attended the scene and notified the Windsor Police Arson Unit, who are now handling the investigation.
Anyone with information was asked to contact police or Crime Stoppers.