Or just install your own lock on ‘his’ gate. If it’s illegal for you to saw down his fence then presumably it’s illegal for him to cut your lock off.
I reckon you should totally do this, easier and cheaper than the whole fence. Padlocks are really cheap as well, especially that there’s 9 of you 🙂
Seriously, what an utter ****. There’s ALWAYS one isn’t there, most people rub along nicely but it only takes one miserable bastard to make life difficult for no reason.
As said, this will knock massive value from your property, as plenty of people don’t want a garden which can only be accessed through the house. Make sure your neighbours are well aware of this as it should firm up support. Also good advice up there on indemnity insurance for recent buyers. Any new neighbours recently?