The brigades control officers were alerted to the fire after 7.30 yesterday evening.
Forty firefighters attended the blaze in Broad Lane.
A single-storey workshop was destroyed and part of an additional woodshed and swimming pool outhouse were also damaged by the fire.
Crews from Twickenham, Feltham, Kingston, Heston and surrounding fire stations brought the fire under control by 10.20pm.
