The SoL definitely needs a bit of TLC. There is a section of the roof internally in the north east corner that looks like it's been jetwashed/cleaned but for some reason it's the only bit. It really stands out, wonder why they didn't do the rest.
can't stand this recent trend of "audits" of basically snooping onto private premises and then looking for fights regarding protecting your rights. At least this guy seems like one of the good ones who gets permission rather than snooping on prisons / police stations etc.