We've just completed a refurb of a Grade 1 listed building (bank) that I designed and PM'd, including re-slating the roof and replacing a large section of floor structure stripped out in the 70's, and apart from requesting a huge amount of detailed drawings (I suspect the Conservation Officer just likes to sit back on a friday afternoon reviewing my 1:2 sections through window heads and mullions….) the conservation officer (and EH) were quite pragmatic, and were even happy for a new steel / Metsec floor to go in to replace the missing one!

They also turned a blind eye to the suspended ceilings, surface mounted lighting conduit, air conditioning etc that had been installed over the years without consent…..