London Fire Brigade reported that about 100 properties were affected in a quarter-square-mile area.
The freak storm hit just after 11 a.m. on a day of unsettled weather, as high winds, bursts of rain and occasional hail and thunder swept across southern England.
The tornado ripped whole sections of roof off some homes, tore tiles from other roofs, uprooted trees and left the street strewn with debris.
Tornado hits London on Yahoo! News Photos