comedydave1980

Lads lads lads. Thanks for getting involved, but boy this got heated! Thank you all for the input. As well as the suggestions here, I've had a suggestion of a stub wall up against my wall with a DPM vertically between it and my wall for the length of the wall. The outside of the new wall would be on the boundary, and damp couldn't get through it to my extension wall. This sounds good. This is similar to the concrete gravel board suggestion (thanks @Gone West) (again with DPM vertically between it and my wall could work). @ETC thanks for the diagram, that captures it. Something physical is probably the only realistic solution, because even if he digs it out now, over time it's going to fill back up with crud. Maybe not today, maybe not tomorrow, but some day in the future, I'll have to crack this nut again. Damp waits for no man and soil creeps. (There's also the added benefit of demarcating the boundary.) @saveasteading I'm not sure I fully understood your suggestion of leveling off both mine and his land, if he doesn't want his level brought down?

Hi all, As my diagram tries to show, we have a rear extension the wall of which is set back from the boundary with my neighbour by 100mm. This was because the neighbour didn't want to have founds on his land - which was absolutely fine, no issue. The level of the gardens rises as you move away from the house - ours has been dug down so the extension floor is level - but the neighbour's still rises. The issue is that at the back edge of our extension, their garden is higher than the DPM on our extension wall. Initially this wasn't an issue but the flowerbed on his side has been filled in up against the wall. I was considering putting a low, narrow fence along the outside of my wall, just inside the boundary (like a 2 foot high one) to prevent buildup against my wall. But this isn't ideal as it too would have mud up against it, and rot over time. So I'm looking for any hints or tips on how to prevent the level of the neighbour's garden encroach above my DPM. We get along, so I'm sure he's amenable to things... Thank you!