Having taken ownership of a new build next week I have noticed that the cold water pipes have condensation forming on them. This seems to occur mostly at night (presumably when the heating is on) and if we are using the washer / dryer, as the waste pipe runs adjacent to the cold water pipe. I’ve tried to make sure there’s is sufficient ventilation in the room by opening all window and door vents. There doesn’t appear to be condensation forming anywhere else in the house having checks the other rooms and walls. Is it normal for this area to form condensation droplets? I don’t believe it’s a lot or enough to form Mold but I’d rather it not be there. I can’t tell whether it’s more pronounced because the walls / plasterboard etc.. are starting to dry out due to the age of the building (a few months). I’ve considered lagging the pipes but don’t want to take a sledgehammer approach if this will eventually rectify itself.