Damp cupboard

[Tommybev]

I’ve got damp in my cupboard upstairs the previous roof was leaking badly and has been replaced in the summer when I bought the property , any advice on what this could be from ? 

[Roundtuit]

We need a bit more context pls.  Is it built into an alcove against a chimney breast? Outside wall?

[Tommybev]

Corner of the house it’s a three apex roof not near the chimney breast 

[Tommybev]

Cupboard is the bedroom built over the stair case