Hi
nearing the end of an extension, BI called today to check roof insulation etc, he informed me that a mains smoke detector should be installed in main house, top of stairs and ground floor hallway, this is a permited development with no detaild plans, allthouge it is a good thought safety wise there are Four smoke detectors, (Battery) allready in the property, becouse there was no connection with the house itself, (the building notice was for the extension) is this out of his scope?, or could he walk through the house next time and say something like "Your windows are not up to regs., get them changed"