I remember cycling past a place in the Surrey Docks area, where there were out-of-the-water boats in a fenced compound - maybe it was in the region of Greenland Dock?
They'll have you on hard for 4 weeks maximum. The lift in is £700 and the hard standing fee is double to mooring fee! Then you have another £700 to go back in.
Nope - I am looking for something cheaper than standard mooring, and something that will last more than 1 month!