The Isle of Wight Fire and Rescue Service were called to the address at just before 13:10, mobilising 2 appliances from Ryde.
Ashey Road has been closed in both directions as firefighters tackle the blaze.
UPDATE @ 13:40 – The fire, which has destroyed a shed and fence, has been brought under control using 2 hose reels.
Firefighters are continuing to dowse the garden and are using a thermal imaging camera to check for any hotspots.
1 appliance has returned to station.
Ashey Road remains closed whilst the incident is concluded.
UPDATE @ 13:52 – Ashey Road has now reopened to traffic and fire crews have left the scene.
The cause of the fire is unknown.