Emergency services were called to the scene in Sutton Scotney at 1.13pm and are working together to put out the flames of the thatched buildings.
75 firefighters are on scene tackling the blaze, say Hampshire Fire and Rescue.
Hampshire Police have now closed several roads in the area, Stockbridge Road along with Oxford Road.
Hampshire Fire and Rescue are continuing to fight the flames of four properties in the area.
No injuries have been reported, however, ambulance service is ready to step in.
Eleven crews from across Hampshire have been dispatched and are tackling the blaze on the Stockbridge Road in Sutton Scotney.
Stagecoach buses are being diverted due to road closures:
#Winchester #Sutton Scotney #South Wonston #86ervice We are sorry to report that the 14.30 Whitchurch to Winchester is running approximately 15 minutes late at Sutton Scotney, due to an incident blocking the A34 carriageway. Our apologies for any inconvenience…Garry
— Stagecoach South (@StagecoachSouth) August 5, 2019