Can I ask who everyone is using as their Principal Designer for their project under CDM 2015? As we are using MBC and sub-trades for our build, the Principal Contractor role comes to us, but it's my understanding that normally an architect fulfils the PD role. I've already asked MBC, and they won't do it, as obviously they don't have control over the rest of the build when they're not on site. Our SE all doesn't provide this service.    @Sensus, I'm sure that I've seen you mention usin