On Wed, 24 Aug 2005 10:50:13 GMT, a particular chimpanzee named "Tim
Morley" tim.morley*REMOVE randomly hit the
keyboard and produced:

I am thinking of having a wide dormer added to the back of our attic for a
shower room and a box room (which currently has a double fronted one at the
front).
A couple of people have said to me if I have this done than the WHOLE house
has to meet current building regs!

The extension and alterations have to comply with the latest
requirements, but the existing has to be no worse than it was
previously. It may be that you will have to do work outside the
extension to make it comply (such as strengthening floors or
foundations if the new work adds extra loads to them, for instance),
but there's no requirement to parts of the building which are
unaffected by the work.
--
Hugo Nebula
"If no-one on the internet wants a piece of this,
just how far from the pack have you strayed?"