Peter Andrews wrote:
I'm thinking of changing my free standing cooker for a hob and built under
oven (requires hard wiring).

Question: Can I use the existing single feed (it is adequate) to feed both
the hob and oven via the single isolating switch. Or do I need to install
another circuit and isolating switch back the the CU.

Most built-under ovens (but NB, not all) come with a 13A plug attached
so can be plugged into an ordinary socket on the kitchen ringmain, which
leaves your existing cooker feed free for the hob. (It's hobs which use
all the lecky, not ovens.)

David