I kinda agree with both of the above but the airport analogy is pants. An airport would be considered more permanent than a 'cosmetic' overhang.
The principal is the same though - plenty of people are prepared to buy something which they
should realise is not to their liking and then make it someone else's problem to change. Less different, in our town there is a tower with a striking clock (many, many years ago it was the Town Hall I believe). Some ****** moved into the town and immediately complained to the council, who said they had no option but to declare it a statutory nuisance - and (against the wishes of the vast majority of existing residents) forced the owner to silence the clock (it was later modified to not strike at night).
The majority of opinion was well and truly in the "if she didn't want to live in earshot of a clock then she shouldn't have moved there". IMO the same applies to the neighbours in this case - if they didn't like what they were moving into then that's their own fault.
I'm pretty sure that there would have been a clause in the agreement which in the event the neighbour wished to re-claim their space (via say an extension) then they would be perfectly within the rights to do so.
Only if it was thought about at the time.Given that it was a verbal agreement, probably of the "no problem, doesn't interfere with my property" sort, then a break clause was probably not thought about.
Would there be a time limit on the ovehanging space claim?
Do ANY of these agreements give carte blanche authority to the holder, for ever? Could such an agreement actually exist?
According to
this Wikipedia article any license is irrevocable by the licensor unless there was a break clause when it was agreed. The 10 year rule for adverse possession would not apply in this case since the occupation was with permission.
What happens to this agreement once something happens to the agreement holder?
Nothing, the agreement would simply pass with the property to whoever inherits it. This is much the same as covenants attached to a property - eg a right for neighbours to access their back garden via a "shared" passageway which might be part of your property.
My neighbours did not seem to understand why I was concerned about a gutter overhang. I explained that while it may not cause problems now, these things have a habit of becoming problems much later on....as we are finding here.
That can be dealt with by way of a
writtenagreement. Perhaps allowing an overhanging gutter, on condition that it can be moved/removed should you want to build something yourself and it be in the way. In the OPs situation, it sounds like if the neighbours were wanting to build an extension, then the party wall could be raised and the roof converted to a gable end with the now raised party wall as it's gable - or it be shortened a bit and valley gutter formed (though I'm not in favour of those).
While the agreement doesn't have to be written, putting it down on paper is the only way to avoid disagreement later about what terms were agreed.