Doctor Evil wrote:

MEM do a central switch box with labled breakers: cooker, fridge, etc. This
can be in a separate cupboard, or outside the kitchen.

Wrong - it should be readily accessible within the kitchen. There has
been recent clarification[*] from the IEE that hiding control switches
in cupboards is not acceptable.
[*] http://www.iee.org/Publish/WireRegs/...Matters_15.pdf - see "good
practice in kitchens" starting on p.13 of the PDF.

This may get you past Part P, as virtaully all of the work is outside the
kitchen

That's nonsense too.

--
Andy