I've never heard of so many contradictions on this theme from experts I'm currently following - of course different jobsworth's in different regional offices have to be taken into account - a bit like the SGK debatacle a few years back (don't we all remember that).
Just read a post of someone who attended Bodrum office who said they didn't want a notarised passport nor tenancy agreement notified, as the Nufus office paper sufficed! But of course the Nufus paper isn't even on the required list of documents on the official Government site for renewal purposes. I guess it's all down to personal experience on the day - go to town, have comfortable shoes on and a pocketful of dosh! Same sh.....e different year!