I'm not sure of any websites that have what you're
looking for or where in the UK you're visiting, but I
do know of a wonderful Bed and Breakfast we stayed in
in London, I don't think it was too far from Gatwick!
It was called Langshott Manor. It was built in the
17th century and was very cozy and comfortable. The
couple who owned were very pleasant and very
interesting. The garden that was there I believe was
original and they were going to restore it. I may
still have a book at home taht has the phone number
and address and maybe a website. If I can find it I'll
post it to you.