Hmm. Thank you. I may set off with a tape measure and a time-of-flight laser sometime in the next few days. I'll need to get an RTK unit sometime. :)

Fair enough. I may end up doing the work for the row of houses north of the church, as I am looking to use the OSM data to generate the backdrop for a map to help visitors locate graves in the cemetery. Having the three metre gap between houses show up as less than one metre is ... less than ideal. :)

Incidentally, I can't seem to find the traces you mentioned publicly available anywhere. I presume that's from a differential/RTK receiver, as otherwise the shift made here is within the accuracy range of GPS...

Well, if the _rest_ of the town is off, isn't it better to keep the relative distances approximately right? In particular, the gap between the church and house nr. 5 (which, now that I look closer, is incorrectly split in two) is decidedly larger than that.

Where did you get the shift from?