Thanks to the useful replies so far, to the click bait comment, I have been planning to build a garden office for a while and the idea of using a boat came into my head, if you can live on one then why not a office, with a toilet and kitchenette area for making tea and coffee etc? I’ve already run a water supply and electricity to the out buildings it would be near and there is sewage pipes in close proximity.
how tall are narrowboats out of water? Permitted development allows up to 2.5 meters height if you are within a 2 meters of a boundary, but like someone said I could overcome this by digging down having it semi buried.
the main issue would be getting it into the garden in the first place, but the one at the school looks great, so I don’t believe it would be an eyesore anyway.
i have a good relationship with my neighbours and I would discuss my idea with them.