Ottawa firefighters received multiple 911 calls Saturday for heavy black smoke and flames coming from a home at 4885 Hawthorne Road.
They arrived to find the garage "fully involved", and they got the blaze under control at 9:55 p.m.
The occupants of the home were out of the building, but Ottawa Fire Services said one person was in the care of the Ottawa Paramedic Service.
A fire investigator is trying to determine the cause of the blaze.
The Canadian Red Cross and the Salvation Army are assisting those affected.