Fire crews spent two hours tackling a blaze which burned through a shed and a fence this morning.
They were called to the fire at a house in Cannon Grove, Fetcham at about 12.30am.
It was put out after crews spent two hours fighting the blaze, causing damage to the shed and fence.
Nobody was hurt.
Firefighters are investigating the cause of the fire, but it is being treated as suspicious.
A spokesperson for the fire service said: "The house backs onto a playing field, it is thought to have been deliberate."
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