I noticed that this building with a blocked circular window under the eves

has gutters that slope towards the middle. This might just be age and poor repair, but this is Kendal, a town known for rain.

If you look closely at this google street maps picture of the other side of the building, you can just see a typical Kendalian feature: the slates at the bottom of the roof are larger than the ones at the top - fewer gaps where there is most running water which might leak through.

I suspect that the gutters slope to speed the water into the downpipes.