In 1962, the church of Mary’s Nativity in Warsaw, Poland, was moved by 21 metres to make room for widening of the nearby major thoroughfare [0]. It was the first moving-of-a-church operation in Europe. [0]: https://en.wikipedia.org/wiki/Church_of_the_Nativity_of_the_...
I assume it was essentially rebuild in the new position right?
No, it was moved. Essentially slided on six purpose-built rails in a three-hours-long operation.