buiding regulations

Hi, I want a small extension to accommodate a 2x1m bathroom (internal area) and a 1.5x1m service area. I'd like an external brickwork, in terms of appearance, to blend with the rest of the house (cavity wall from 1970). What is the U-value requirement for the new external walls, please? Am I...

Hi, I've had French doors fitted to a first-floor bedroom in anticipation of having a balcony installed. However, due to a change in circumstances, I may not install the balcony after all (it might be something I do in the future though) and I'm looking for a way of making the doors safe and...