Four fire engines and 21 firefighters and officers were called to a fire at a bungalow in Fen Lane in Upminster.
Part of the bungalow was damaged by fire. One man was recued from the property by firefighters wearing breathing apparatus. He was treated at the scene before being taken to hospital by London Ambulance Service crews. Sadly he later died in hospital.
The Brigade was called at 0904 and the fire was under control at 1013. Fire crews from Dagenham and Romford fire stations attended the scene alongside colleagues from Essex Fire and Rescue Service.
The cause of the fire is under investigation.