Question about 'self made' 12V Lighting in new extension

[Andrew B]

Install your bit yourself and ask the contractor to clearly state in his installation certificate the extent of the installation the certificate covers. Which would be a case of identifying the circuit excluding ELV lighting.

 

[Radian]

The first fix is underway and I will be laying in draw-wires to key locations enabling me to install most of my equipment at a later date without too much surgery.

I greatly appreciate the constructive and civil atmosphere of these forums. This is in contrast to some other online trade forums I have visited. Thank you all for taking time to consider my question.