Maybe that is the case i was thinking of.
A friend's neighbor poured a house foundation right across the property line, because they referenced the wrong pin as their property corner. They had to remove the foundation and move the house over.
I saw something similar down in Portland Me, except that rather than being over the line they were simply 11" closer to the line than allowed by zoning ordinances. One neighbor wouldn't sign off so that they could get a variance; so the entire brand new McMansion had to be moved or torn down. I don't know which they did.