Currently selling an old terrace house. It had a survey three years ago when buying it and no problems on the survey.
There is now a noticeable damp patch on bathroom wall and dining room wall as well. Both small patches where the plaster is going a bit crumbly.
Te buyers had a survey done which said its damp penetrating through the brick work and salt coming out the brick? So not rising damp.
Buyers have had a builder round who's said it's 2k worth of work......so they say. They want 2k off the house price.