I would always ask permission before attaching anything to a boundary fence which is not yours. Deeds are the only way to find out who is responsible.
At a previous home our neighbours had an extension built (within their garden but it meant they wanted to replace the fence (ours) & hedge (theirs), we agreed that they could as we would no longer had a 40 foot hedge to clip. Result a beautiful fence & good relations with neighbours
Govt announces Ukrainian style scheme to bring thousands more migrants to UK
The government changed women's pension age and called it progress. Did anyone actually ask you?
. Is there a hard and fast rule about fence responsibility? From googling it doesn't seem that there is. My house deeds went to the solicitor when I was divorced and they are now on the Land Registry computer and I will have to pay to get a new copy. What was meant to be a simple job is now turning into a nightmare...