Oh wow! That's close. Only Charlie will be in London anyway then, he is not properly on his hols until later in August. But if you visit again in the future, be sure to give us a shout.
Certainly will, next time we are in Cornwall after this short break is September 2016. I like to plan ahead. Here is the link http://www.uniquehomestays.com/unique/details.asp?id=640# We've quite a few holidays booked in various parts of England. I found some real little gems. Our Southern Hemisphere trips are on hold until Mabel is two (that's the age my sons said they would look after her)