Here's a much better summary of Part P changes than the other ones;
http://www.niceic.com/Uploads/File8952.pdf
Basically - and I knew about the removal of Kitchens from special locations etc... but didn't realise it had gone this far.
In a nutshell, with some exceptions only anything involving Bathrooms or any work starting, including, or ending up
with tinkering at a CU is notifiable. No wonder all the Part P cert co's are folding / merging.
Even outdoors is no longer special. I was in the process of getting a local electrician to do a Part P for me on an external
socket and they very kindly pointed out my minor works would do under the new rules....