What book? Psychic support society?

[Jux]

What is this book?

Main character is female, late teens/early 20s I think.
She can see ghosts or something, paranormal things?
She sets up a support group for people who are psychically challenged.
There is a gargoyle who enjoys art and lives on the roof of the Tate.

Anyone have any idea?

oh, it's young adult

@jux is this a recent book? Or from a few years ago?

A few years ago maybe, not too many. Def not this year anyway.

Found it (should have asked dd in the first place!). It's Stray Souls by Kate Griffin. Dd even knew wherein the house it was - unprecedented