Not sure how else to fix it. The UK is very wet, houses are stone and cold. Condensation is almost constant and mold pops up most winters. We used to run a dehumidifier and it would collect water, but as soon as you open the front door another houseful of wet air comes in.
don't paint over mold. It's dangerous stuff, get mold removal products or a specialist in; better yet, make the landlord pay for it (which he should, because if his property becomes uninhabitable by mold he's screwed).
Not sure how else to fix it. The UK is very wet, houses are stone and cold. Condensation is almost constant and mold pops up most winters. We used to run a dehumidifier and it would collect water, but as soon as you open the front door another houseful of wet air comes in.