Yes, exactly (although nothing to do with Part P)
Schedule four lists things that are NOT notifiable and specifically states:
"2. Work which—
(a)is not in a kitchen, or a special location;
(b)does not involve work on a special installation; and
(c)consists of—
(i)adding light fittings and switches to an existing circuit, or
(ii)adding socket outlets and fused spurs to an existing ring or radial circuit.
The Building Regulations 2010
These Regulations revoke and replace the Building Regulations 2000 (S.I. 2000/2531) (“the 2000 Regulations”), and consolidate all subsequent amendments to those Regulations with minor amendments. The amendments include removing the requirement, where building work involves inserting insulation...
