Bristol House/Flat (London)

Hello :)
I am currently in Rome, but coming back to Blighty in December to resume my NHS work.
I will be working in Bristol this time for a year or 2.
I have a couple of my friends one is MD and the other is a Businessman
We want to rent a nice house or flat in central Bristol and so far found nothing exciting online
Any internations members has something to offer there?
Ciao
Khaled