Weird leak down side of house when empty bath???

[soppypreggyloon]

if you have a shower or bath water runs down the side of the house. Not a lot but enough to mak it look like it's been raining on the patio door.
I can't see what's going on. This is made harder by the deaign of the house which has tiles over roof and down sides of first floor (cornish box) this means you cant see any pipe work out of bathroom.
Any ideas?

TIA :)

It's probably that the overflow pipe isn't long enough. We had to get a guy in to put a longer one in, but not before we got a really horrible white limescale stain down the side of the house.

Is the overflow pipe the skinny one? Like maybe an inch diameter?
It's only started in the last few weeks so not sure why it's suddenly started.

Bumping for the weekend diy genius-es! :)

It's not the overflow.
Water seems to be coming through a hole in wall where cable for security light is. We've not messed with that in any way lately so guessing something has broken.
Any further ideas?

We had a slightly wimilar thing happen to us. Simple cause wa that the tap was eaking under the bath and was finding an escape route (ours was the crack in the plaster in the entry) so maybe its finding the cable hole as its escape?We just took the side off the bath and put a new washer on the tap. (I say we like I had something quite major to do with it when it acual fact I held the torch )

similar thing darn it! and the tap was leaking

It's not a leaking tap as it happens whether you shower or use bath. No drips while the water us going in but steady stream when you empty the water. I'm worried it's a biggie! :(