From what we've looked at so far, Japan is cheap. CHEAP!
We have a 4 bedroom house, large garden, parking... near huge natural parks, beaches, reliable transportation, schools... 40 minutes to Tokyo... about 700 pounds/month. Taxes are really low, too.
Mortgage at 1%. Not only that, jobs are plentiful and I make over 30 pounds/hr. Not likely I'll be able to do that in London.
Now I will cry.
I don't want to rent anything too different from what we have in Japan... and we can go up to 400 pounds/week... but even in that price range, everything we've seen looks cheap/run-down. Rooms and gardens are small. Flooring looks like laminate. From reports, some of the floors have been very weak. Bouncy/saggy weak. Some houses had no bathtub!
Sorry about long post... will keep looking...