I live in a smallish house - no conservatory or utility room, or anything like that. No dryer. 
Anyway, on sunny winter days, I try and peg out my washing, though it barely dries it at all. So I still inevitably need to finish it off indoors. When we have day after day of rain, I still have washing that needs doing! So I put it all on a clothes rack around a radiator.
Recently, I read that you shouldn’t really do this. It’s known to cause damp and condensation in the house. Since winter set in, I’ve already had problems with damp and mould (appearing on outside walls only!). When I flagged it with the letting agency, I was told it was due to condensation, and there was nothing that could be done. I’m convinced this is not the case, as the damp is on the outside wall of my bedroom, and nowhere else. Not even the kitchen where I dry my washing, and where there is steam from cooking.
AIBU to continue to dry my washing this way? I don’t know what else I’m meant to do when I don’t have a dryer!