Group,

I'm aware of the regulations that don't allow you to put light
switches high up where young children can't reach them, but require
them to be at a level where visiting wheelchair users can switch
lights on and off to their heart's content. I believe power points
have to be slightly higher than was typical in older properties.

What do the regulations say concerning an extension to an existing
(1950s) house? Can I (or a suitable part-P qualified electrician) put
the light switches and power points at whatever height I want in the
extension (e.g. at the same height as in the original house), or do
they have to be at the new regulated height?

Cheers,
David.