Could I tile onto this surface?

[deisesam]

Hi,
Thank you for taking the time to read my post.
I am having trouble with an interior wall in my toilet. Over the last 6 months on one wall the paint started to bubble and then chip off. It is a dulux bathroom paint. The wall is adjoining my neighbours bathroom. I though at first they had a leak in the seal around the bath as that was about the right height but we had a look and the seals and grout are tight and in good condition.
There is no heating in this room and no condensation on the toilets itself. I’m lost and would now like to tile it.
Would it be possible??
I would appreciate any advice.
Sam

 

[foxhole]

Would need sanding back to allow tiling, is it damp? are you a terraced house with parrapet walls on roof? roof ok?

 

[deisesam]

Thank you for responding,
I’ve cleaned and sanded it, no damp underneath. We are a 1st floor flat in a Building of 4 floors.

 

[JP_]

is this just a WC or a shower/bathroom? Maybe the extractor is not working as well, and it is just damper than it was before?