Hello ladies! I'm a first time buyer buying with DH and looking at a potential fixer upper. There's a semi-detached house I'm considering, with a viewing booked in this Thursday. The rest of the house looks ok structurally, although I see these holes/stains on the outside walls. I'm wondering if any of you would be able to identify these. They seem to be at the bottom of the bathroom and downstairs cloakroom.