If anyone can offer any advice on this, it would really be appreciated. When we purchased our house, it became clear that there was an issue with how much of the back garden the vendors owned. An unused road had been taken over by our garden and 3 of the neighbours. The earliest record of this is 1998. In 2001/2002 the previous owner and Lambeth formally applied to have the road stopped up and this was done at Camberwell Magistrates Court. The court no longer have the records although they have supplied us with a statement confirming the case was successful and the road was stopped up. A few months ago, an architect acting on behalf of the adjoining property wrote to us asking us to restore the land to road as they wanted to develop the plot, currently 1 storey garages. We responded pointing out that the road had been stopped up legally, they then asked us to provide proof of this, but we hadn't responded to the latest letter. They have now applied for planning permission to build 6 x 2 and 3 storey houses on the plot. Access through the old road forms part of their application, and in their correspondence with Lambeth Planning they have pointed out numerous times their astonishment that we have grabbed the land and asked Lambeth to restore it. There doesn't seem to be any response to this issue from Lambeth. From what I've been able to find on-line, some councils have a policy that if a public highway is closed up, the adjoining neighbours split the land down the middle. I've not been able to find a policy from Lambeth. I can't find any cases when a road has been unstopped or an ex public highway has been claimed via adverse possession. We have an indemnity policy against the land being taken away from us and I've informed the insurers, but they are being very slow at coming back and not terribly informative. We are going to speak to a solicitor and planning experts, but wondered if the stopping up might be an argument against the development as they have designed their whole scheme around being able to access some of the properties through the stopped up road. Many thanks if anyone has any ideas.