The incident occurred at around 4pm on Friday 18th December 2020. Extensive damage has been caused to the roof of an outbuilding.
A group of children were reported as, in the area when the Fire Brigade arrived, and police would like to speak to them to help with their investigation.
A spokesperson for the police said:
“Acts of arson are not only illegal, but it is incredibly dangerous and also devastating for the victims.
“We would urge anyone to come forward with information that could help with our enquiries”.