By Mia O’Hare George Clooney’s stunning riverside mansion has been hit by severe flooding for the second time this year. The Hollywood actor’s impressive £15 million manor home on the banks of the River Thames has been affected following heavy rainfall. It appears the Grade II listed house hasn’t suffered any water damage, however the gardens and surrounding area have been totally drenched in water. George shares his gorgeous home with wife Amal and their twins, but unfortunately their perfectly manicured gardens are submerged as the Thames broke its banks. Earlier this year, their mansion suf…