Err...Dippy said:Alex & Jar, you do not have to notify for this work.
The only question you need to ask yourself before deciding it what impact this might have when you come to SELL the house. Have a look at the HIP rules (http://www.homeinformationpacks.gov.uk) and like me you might get nervous about exactly what you are going to have to provide in the pack when you come to sell. The condition report is likely to become mandatory, and the home inspectors may well start looking for signs of breached to the building regs.
How hard would it have been for you to have quickly searched and found that the harmonised colours were available for use from April 2004?Now unless your home is very new, the mere fact that you will have new colour wiring alongside the old colours will prove (if inspected that closely) that it has been modified since part P (or near - I can't remember the dates of colour change vs part P - maybe someone else can confirm).
It still isn't, technically speaking.HOWEVER, and this is something that I'm going to have to do on my own house, as soon as you decide to modify the wiring on a house which has NOT been tested and certified according to the regs (and most houses are of course like this because before Part P it wasn't required),
Surely the extent of the testing depends on the extent of the modifications?then you need to test it first (for safety reasons of course - you can't me sure that your wiring changes will be safe if you don't know that the existing wiring is safe).
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