The blaze broke out at a property in Bellbank Way, Athersley, Barnsley at around 10.30pm last night.
A spokesman for South Yorkshire Fire and Rescue said the occupants returned to their property, after being at the pub, to find their house engulfed in smoke.
He said: "A light fitting had caught fire, and it filled the house with smoke.
"They had a very lucky escape."
Appliances from Cudworth station were sent to tackle the fire.
No-one is believed to have been injured.