Firefighters from Steyning, Worthing and Haywards Heath attended the scene in Castle Lane, Bramber just before 10.30pm.
West Sussex Fire and Rescue Service said via Twitter that East Sussex Fire and Rescue Service offered assistance and that crews from East Preston and Lancing were also at the scene.
It added that the incident was scaled down just before 2.30am this morning (Sunday, January 23), where remaining crews were checking for hotspots using a thermal imaging camera.
All crews had left the scene by 8.30am this morning.
A spokesperson for West Sussex Fire & Rescue Service said: “At 9.34pm we were called to a house fire at Castle Road, Bramber.
“Fire engines from Hove, Preston Circus, Roedean, Steyning and Worthing are currently in attendance, with support from Haywards Heath’s command support unit. “Crews are using four sets of breathing apparatus, three fog nails, two hose reels, two jets and two hydrants to extinguish the well-developed fire at the rear of the property.
“No injuries have been reported and the occupier safely evacuated the property prior to the fire service’s arrival.
“Sussex Police are also at the scene.”
It added that the incident was scaled down just before 2.30am this morning (Sunday, January 23), where remaining crews were checking for hotspots using a thermal imaging camera.
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The scene of the fire at Bramber, Steyning. Picture by Eddie Mitchell SUS-220123-084051001 Photo: eddie mitchell 07771605974
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The scene of the fire at Bramber, Steyning. Picture by Eddie Mitchell SUS-220123-084040001 Photo: eddie mitchell 07771605974
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The scene of the fire at Bramber, Steyning. Picture by Eddie Mitchell SUS-220123-084029001 Photo: eddie mitchell 07771605974
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The scene of the fire at Bramber, Steyning. Picture by Eddie Mitchell SUS-220123-083956001 Photo: eddie mitchell 07771605974