you what, thats complete nonsence, posts could be anywhere.

as a rule of thumb when building houses, planners normally give you the left hand side.

So sorry in your case its likley to be your responsibility. Although this is not a set in stone rule. if your deeds are unclear, you can ring the council they may shed some light.

I run a landscaping business and we have lots of debates when doing fencing work. Ive even had neighbours come to blows, getting solicitors involved, and even the police once. Now i just take digital photos of everything to cover my back atleast.

if your still unsure maby approach your neighbough, and ask if they are willing to contribute half of the cost. get 2 or 3 companies in to quote, dont always take the cheapest one, you may regret that!!

At the moment a 6x6 waney panel (most common ones) is around £20 and a 8' post £6. if you estimate £60 for every panel should give you an idea of cost for total job. thats removal disposal of old, supply of new, ballast cement labour.

if you want better quality fencing the close board/featheredge is best though, thanks to china buying all the wood, these are nearly £30 for a 6x6 panel!!