


Damp basement, digging trench - advice requested
I’ve a damp basement. Only one wall is exposed to damp soil (the rear has an extension, the front is above ground level, and the other side is another house).
I’m doing the usual things… air bricks, dehumidifying etc. I’m looking at lowering the ground by the side. I’ve dug down 4-5 bricks and have got to clay. There’s a natural drop off to the land towards the front of the house, so easy to direct water along and away into the drain. I’m considering whether I should
A) dig down further
B) fill with gravel and a French drain type setup
C) install a plastic drainage channel at the bottom of the trench (underneath current waste pipes)
D) put anything on the wall itself
(Or all of these/none of these)
At a later date I may lower the whole ground level - but unlikely in the short term.
Fairly sure I’ve got a way to the foundations - basement floor is 1.5 or so m further down from where I’ve dug to.