Hi - I've recently completed an extension to my kitchen and added a conservatory to this. I have received sign-off from Building Control for the extension and didn't need this for the conservatory but now I want to add a radiator in the conservatory itself ready for next winter.
If I add the radiator, does this mean that my Building Regs sign-off will no longer apply or be revoked? Can this happen? Is there a problem if I do this?