AIBU to think neighbours are cheeky whatsits?

[Strotty]

Hi everyone
I'd really value your take on this. We have been away from home during lockdown - to explain, I'm a nurse and have been working on a covid positive ward throughout lockdown until this week. My DH, DS and DD decamped 100 miles away to MIL's home while it is empty and being sold to stay away from me!
My neighbours very kindly cut my lawn during DH's absence/ while I was at work. It's a small garden and doesn't take long but I was really grateful to them for doing this. It wasn't a great job, with chunks uncut, but I was grateful for the gesture regardless. HOWEVER, DH now returned home has noticed that they have built a shed up against our shared fence and ... this is the cheeky bit ... used our side of the fence to hold the shed in place by erecting a strut across the width of our side of the fence, thus holding their shed secure on their side.
They have not said anything to either of us about doing this.

I feel that we need to say something but the fact that they cut our lawn without being asked to mitigates their cheek somewhat? My DH is a gentle soul and doesn't want any falling out. I want to talk to them about it.

AIBU to be a bit shocked by their cheekily attaching a wooden strut to our side of the fence to keep their shed secure without saying anything??
What do you think?

Unless - maybe one person erected it on their own, and found it difficult to hold all the bits up at once. Perhaps they attached it to the fence temporarily while they put it up, and then forgot to take the strut thing off at the end?

That makes the most sense. I’ve built a shed by myself and it’s not easy.

A shed should stand in its own.

I don't understand why there's a strut across your fence and what it's got got to do with their shed, especially if it's on your side of the fence?

Are you sure they haven't done some kind of fence repair for you whilst they were mowing your lawn?

I don’t understand what they have done. Is it definitely a shared fence?

Can you draw a picture? I don't quite understand

The ownership of the fence will be on your house deeds. There is a T marking on your deeds denoting which property owns the fence. You can also often tell as the owner has the fence posts on their side.

If you erect a fence, the "good side" - that is the slats, should be on the neighbours side and the posts and fixings on yours.
But ask why the strut is there. A shed should be self supporting.

Remove it. Say nothing.

Why would a shed be secured to a fence? Surely a shed is far more stable and secure? Are you sure it's not that the fence gas some movement so he's secured it to the shed?

If the strut it straight from a post to the shed without twisting it shouldn't cause any issue? If it is from the top of the fence panel ask for it to be taken off. Panels are not strong and the flexing (that happens in the wind however sturdy the fence) will quickly weaken and break the panel.

Need more info OP, are you ever coming back?

I built a shed from a kit some years ago. It stood up by itself for many years! The neighbour's shed should be self supporting! They did a bad job of the construction!

Who owns the fence?

Who's fence is it? They usually belong only to one side.
If it's yours then just remove the addition. If its theirs then it's not up to you.

Agree with @yamadori....why does the shed need supporting at all? Sounds a bit shit. Is it a lean-to shed?

Krapom my old house had joint ownership of the fences each side (I owned the end fence). I read my copy of the deeds when there was storm damage to check ownership, so we could discuss the repairs with the relevant neighbours. I was seeing the solicitor anyway, so asked him to confirm my reading of the deeds. Initially he poopooed my interpretation, but had to confirm I was indeed correct when he read them.

was the lawn mowing just the cover story for being in your garden to fix the strut?