On 23/07/17 21:32, Bert Coules wrote:
"Kipper at sea" wrote:

Is it the window or the soffit or fascia that's causing
the overhang? Is the loft roof a flat roof or pitched tiled?

There isn't a window in the side wall of the dormer. If there is an
overhang it's caused by the decorative/protective cladding which was
used instead of tiles. This stuff:

https://www.marleyeternit.co.uk/Faca...therboard.aspx


The loft roof is flat.



That's tricky - I would consider legal advice asap. If it's overhanging
the centre of the party wall line, it's likely to cause problems.

But first, measure it...