Neighbours built Avery overhanging my garden

Abbafan1972

You need to speak to them and get this sorted.  That really is taking the pee!

pinkteapot

Talk to them in a friendly way first - "I don't know if you realise, but the edge of the roof of your new aviary is overhanging my fence..."

If they don't care and refuse to do anything about it, this page explains the legal situation pretty well: 
https://www.lyonsdavidson.co.uk/can-homeowners-overhanging-eaves-gutters/

See the 'Trespass' section at the end. If it comes to the point of taking legal action, you'll need advice from a solicitor (does your home insurance have legal advice cover?). Hopefully it won't come to this though!

The council will only help if the structure breaches planning regulations (probably not as it's not tall - but you can try checking with them). If it's not a council matter, it's a legal matter as it's trespassing.  

UnderOffer

OMG that is shocking, definitely get round there and tell/show them. Did you not notice before they had fully completed it?  I would have spoken to builders/neighbours straight away. 

allIcouldwishfor

That is shockingly inconsiderate of them. I’d be fuming. Some good advice above how to approach it. 

davidmcn

FtbDreaming said:

So you don’t think the council will help?

If they needed planning permission for it then in theory the planners could take enforcement action. But they're not necessarily going to be all that interested. It's primarily a property dispute between neighbours and for you to sort out. 

GDB2222

I’m a little bit worried by the advice to take a chain saw to it, even as a last resort. 

TripleH

I support the checking boundary and friendly approach backed up with a solution "you could add guttering to divert the water". I would think it is possible they don't know how much it overhangs as they probably can't visuslise it from their side or thought about the possible issues when it was built.
Avoid getting nasty and use that as a last resort if they make no noise about rectifying it. 
Circular saw is safer than a chainsaw though 😉

Mutton_Geoff

The next problem will be rats. Wherever there are birds, there are rats. Might be worth digging and installing wire mesh under your fence to slow down their tracks into your garden. Solway make good traps if you need them.

As for the neighbour, forget niceties, a short sharp written notice, remove within 7 days or you will sue. Anyone who does this is born inconsiderate and probably doesn’t expect you to bite back.

tigerlily74

For everyone advising chainsaws etc remember there will be innocent birds in there. I hope you get it resolved op.

silverwhistle

I think most of the chainsaw suggestions have been tongue in cheek: my incinerator one certainly was, I hasten to add!