At present, we have a freestanding TV stand next to the fireplace. In the fireplace is a decorative gas fire from about 20 years ago which we never use. Its gas supply is via a pipe up through the floor and a little tap which just fits in the gap between the current TV stand and the wall.
If I were to install a built-in cupboard instead, is it ok to build around the gas tap or are there rules that it must be visible as well as accessible?