[pmyteh]

Spurs have been re-legalised: the Part P changes have now been rolled back to whole new circuits, and spurs and new outlets are back as non-notifiable along with new faceplates etc.

That said, you're theoretically supposed to do a full set of earth resistance measurements etc. on the new wiring, which is hard if not impossible unless you've got proper electrician's test equipment. But in reality no one does that when DIYing it.