Platoon chief Colin Shewell told 980 CFPL fire crews were called to 127 Toulon Cres., a townhouse, around 10:30 a.m. Saturday.
Shewell said crews arrived to find heavy smoke and fire coming out of the house.
Five residents inside the house escaped without injury, the platoon chief said, adding the house had significant damage and won’t be inhabitable without major renovation.
Adjacent units experienced smoke migration and water damage.
Investigators were working to determine the cause of the fire. Shewell said the blaze is not believed to be suspicious.
Damage was pegged at $400,000.