Where the clue appears
Match the clue to the part of the property
A ceiling stain below a bathroom, a damp cabinet floor or a recurring wall stain can point to a fixture connection or supply pipe inside the building. A wet patch in the yard may involve the water line serving the property, and warm or damp flooring raises the question of the slab.
These are starting points, not conclusions. A warm floor or cracked wall does not prove water is escaping under the foundation, and water can travel before it shows. Note where each sign appears and whether it dries, returns or spreads.
