What kind of damp is this?

[Moraelin]

I've just moved my bin in my kitchen and noticed the lower portion of the wall behind is soaking wet. There are visible drops of water and the paint is cracking. What on earth has happened to cause it? And how do I stop it? It's an outside wall, we're an end terrace and the kitchen is on the end corner. The wall outside looks dry. It's really worrying!

Maybe caused by condensation. How well ventilated is the room? Are you drying washing indoors?

Condensation. Keep the walls clear of any furniture, wipe down daily, keep the room ventilated.

Bane of my life when i lived in victorian properties.

Thanks for the replies. No washing as it's the kitchen but there isn't an extractor fan or anything so it must be because of the heat when cooking. I do always open the window but I'll start opening the door too.

I don't think that's condensation, it looks too wet.

Are there any pipes in the wall that could have leaked? Or has anything been cut into the wall above this such as an extractor fan or a window?

Has the gutter been cleared?

If it's a concrete floor, it's probably a leaking waterpipe under it. Or possibly an old pipe plastered over in the wall.

Have you got a watermeter?

Show us the layout of the kitchen including position of pipes, drains and sink.

Could be a shoddy wall construction.

It looks like an internal leak coming up from the floor or rising damp. Can you see the damp proof course on the outside part of this wall? Is that laminate flooring in the room? If so, are the joins between the planks level or are they rising up? If the latter there could be a leak traveling through the flooring and now it's reached the wall.