When I was in the UK in November/December, I stayed on the most delightful canal boat. It was cozy and snug and I loved every minute of it. The canals in London are filling up, which is somewhat of a problem, because canal boats and moorings are much less expensive than any London flat.
I saw a listing for a canal boat in the Little Venice section of London, which is close to Maida Vale, one of the very posh areas of town. Although someone was a little too enthusiastic with the HDR setting, you can get a good idea of its location.
This looks like it’s a public canal path. The side of the canal where I stayed was private and accessible only to the residents and their guests. The other side was public. I would also check to see if this is moored two abreast, since that could be a problem.
This canal boat is £155,000 ($239,000) with a £5,320 ($8,200) mooring fee. If you lived in the country, it would make a nice pied a terre in town!