Re: EN15804 compliance
Reference to the Construction Products Regulation seems very sensible, but there the term "permanent" itself poses some challenges! No problem, of course, for building fabric elements like bricks. But there are many items that are not quite temporary either: floor coverings, partitions, etc. Some of these already have EN15804-compliant EPD. In the case of bathroom fittings, there are IBU EPD for "bathtubs and showers made of steel enamel and acrylic", and "sanitary ceramics" that have taken EN15804 as core PCR (http://construction-environment.com/hp11212/EPD-Overview.htm)
In practice, it would be nice that PCR for these kind of products take heed of EN15804 (for example in selection of LCIA categories and methods) even if they are not fully compliant. Then users can, if they wish, have some possibility to incorporate the indicator values into whole-building LCA.