In article <ip5991ddjdhlpq2oj9ppeddcud0l1seaov@4ax.com>,
Alex <alex@aitchison8.freeserve.co.uk> wrote:
Their deeds state that 'they must not open any window, apature or other
opening below first floor level in the wall' but this has been ignored.
The title deeds also state that 'all division walls shall belong to the
respective adjoining owners in vertically divided halves - blah blah',
but this has also been ignored.
That seems to indicate that you own the half of the wall on your side,
which they illegally made a hole in. You should be able to force them
to repair that hole; or you could repair it yourself and bill them for
the repairs.
You really can't afford _not_ to get legal advice from someone
familiar with your local laws who can read and interpret your deeds.
Or, you could drill your own holes back through the wall and duct
their emissions back to their side :-)
Seth