

Would this fence need planning permission or does it count as a 'temporary structure'?
Our next-door neighbour earlier this month got a ~6ft fence next to a 1m council fence on his own land erected. We thought it might be nice to do the same thing, and asked if he had gotten planning permission for it (as we suspected in the past we might need it when we wanted to do something similar).
He said he didn't need to as the fence is considered a temporary structure. He gave us the details of the fencing company he used and they seem reputable (good reviews, etc). The style of fence he had put up is similar to the one in the 2nd image, with a concrete base and posts between the wooden panels.
Our land as marked in the diagram image is essentially a shared private road at the end of an estate. We'd also love to to put up a similar fence and were delighted that it seemed we may not need planning permission. But when I recently mentioned it to a friend, he pointed out that we might still need planning permission anyway as it is right next to a pedestrian footpath/main road and over 1m tall.
So, would we need planning permission if we were also to erect a similar 6ft fence in the same bit of our land to mirror the neighbour's?