Fire crews were called to a house in Blackpool following reports somebody was trapped by flames.
The incident happened in Brentwood Avenue, Anchorsholme at around 11.30pm on Friday.
On arrival crews,from Bispham, Fleetwood and Blackpool, were able to determine nobody was inside the house.
They used water from a hose reel to put out a fire in the consevatory of the property.
A fan was used to clear smoke and cool the building.