Boilers and Heating
Ground source heat pump distributor (internal)
Micro-Combined Heat and Power / Biomass
Stairs and Staircases
Unimproved loft space
If you are carrying out electrical work and installing lighting in your house then Building Regulations will apply.
You should use an installer who is registered with a competent person scheme or if an installer is not a registered competent person, they can use a competent person to certify work as an alternative to seeking approval from a Building Control Body.
However, repairs, replacements and maintenance work or extra lighting points or other alterations to existing circuits (except in a kitchen or bathroom, or outdoors) is allowed.
Learn more about lighting on the Planning Portal
Learn more about electrics on the Planning Portal